Novos menus e envio de mensagens

Reviewed-on: #1

pitiupi.chat/build/built-jar.properties

@@ -1,4 +1,4 @@
-#Mon, 17 Aug 2026 14:26:26 -0300
+#Fri, 02 Oct 2026 20:11:21 -0300
 
 
 C\:\\Users\\extre\\OneDrive\\Documentos\\Faculdade\\2026_02\\Monitoria\\Pitiupi\\pitiupi.chat=

pitiupi.chat/src/pitiupi.chat.iml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="module-library">
+      <library>
+        <CLASSES>
+          <root url="jar://$MODULE_DIR$/../../pitiupi/dist/pitiupi.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

pitiupi.chat/src/pitiupi/chat/GUI/ChatMenu.java

@@ -4,28 +4,29 @@
  */
 package pitiupi.chat.GUI;
 
-import java.awt.event.ActionEvent;
-import javax.swing.JMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastSubMenu;
+
+import java.util.List;
 
 /**
  *
  * @author flavio
  */
-public class ChatMenu extends JMenu {
-
-    private final ChatWindow chatWindow;
-    private javax.swing.JMenuItem menuItem;
+public class ChatMenu extends MulticastSubMenu {
+    ChatMulticastMenu chatMulticastMenu;
 
     public ChatMenu(ChatWindow chatWindow) {
-        this.chatWindow = chatWindow;
-        this.setText("Chat");
-        menuItem = new javax.swing.JMenuItem();
-        menuItem.setText("Show Chat Window");
-        menuItem.addActionListener(this::chatMenuActionPerformed);
-        this.add(menuItem);
+        this.chatMulticastMenu = new ChatMulticastMenu(chatWindow);
     }
 
-    private void chatMenuActionPerformed(ActionEvent ae) {
-        this.chatWindow.setVisible(true);
+    @Override
+    public String getText() {
+        return "Chat";
+    }
+
+    @Override
+    public List<MulticastMenu> getMenus() {
+        return List.of(chatMulticastMenu);
     }
 }

pitiupi.chat/src/pitiupi/chat/GUI/ChatMulticastMenu.java

@@ -0,0 +1,21 @@
+package pitiupi.chat.GUI;
+
+import pitiupi.models.Menus.MulticastMenus.MulticastActionMenu;;
+
+public class ChatMulticastMenu extends MulticastActionMenu {
+    ChatWindow chatWindow;
+
+    public ChatMulticastMenu(ChatWindow chatWindow) {
+        this.chatWindow = chatWindow;
+    }
+
+    @Override
+    public String getText() {
+        return "Show Chat Window";
+    }
+
+    @Override
+    public void onClick() {
+        chatWindow.setVisible(true);
+    }
+}

pitiupi.chat/src/pitiupi/chat/GUI/ChatWindow.java

@@ -5,34 +5,33 @@
  */
 package pitiupi.chat.GUI;
 
-import java.io.IOException;
 import java.text.SimpleDateFormat;
 import java.util.Date;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 import pitiupi.chat.net.ChatMessage;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.Message;
+import pitiupi.control.ConnectionManager;
+import pitiupi.models.Messages.Message;
+
+import javax.swing.*;
 
 /**
  *
  * @author flavio
  */
-public class ChatWindow extends javax.swing.JDialog {
+public class ChatWindow extends JDialog {
 
-    private javax.swing.JButton jButton1;
-    private javax.swing.JEditorPane jEditorPane1;
-    private javax.swing.JPanel jPanel1;
-    private javax.swing.JPanel jPanel2;
-    private javax.swing.JScrollPane jScrollPane1;
-    private javax.swing.JScrollPane jScrollPane2;
-    private javax.swing.JSplitPane jSplitPane1;
-    private javax.swing.JTextArea jTextArea1;
+    private JButton jButton1;
+    private JEditorPane jEditorPane1;
+    private JPanel jPanel1;
+    private JPanel jPanel2;
+    private JScrollPane jScrollPane1;
+    private JScrollPane jScrollPane2;
+    private JSplitPane jSplitPane1;
+    private JTextArea jTextArea1;
 
-    private final MainWindow mainWindow;
+    private final ConnectionManager connectionManager;
 
-    public ChatWindow(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
+    public ChatWindow(ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
         initComponents();
     }
 
@@ -43,23 +42,23 @@ public class ChatWindow extends javax.swing.JDialog {
      */
     private void initComponents() {
 
-        this.setDefaultCloseOperation(javax.swing.WindowConstants.HIDE_ON_CLOSE);
+        this.setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE);
         this.setTitle("Chat Window");
         this.setBounds(new java.awt.Rectangle(0, 0, 800, 600));
         this.getContentPane().setLayout(new java.awt.BorderLayout(5, 5));
         this.setPreferredSize(new java.awt.Dimension(800, 600));
 
-        jSplitPane1 = new javax.swing.JSplitPane();
-        jScrollPane1 = new javax.swing.JScrollPane();
-        jEditorPane1 = new javax.swing.JEditorPane();
-        jPanel1 = new javax.swing.JPanel();
-        jScrollPane2 = new javax.swing.JScrollPane();
-        jTextArea1 = new javax.swing.JTextArea();
-        jPanel2 = new javax.swing.JPanel();
-        jButton1 = new javax.swing.JButton();
+        jSplitPane1 = new JSplitPane();
+        jScrollPane1 = new JScrollPane();
+        jEditorPane1 = new JEditorPane();
+        jPanel1 = new JPanel();
+        jScrollPane2 = new JScrollPane();
+        jTextArea1 = new JTextArea();
+        jPanel2 = new JPanel();
+        jButton1 = new JButton();
 
         jSplitPane1.setDividerLocation(500);
-        jSplitPane1.setOrientation(javax.swing.JSplitPane.VERTICAL_SPLIT);
+        jSplitPane1.setOrientation(JSplitPane.VERTICAL_SPLIT);
         jEditorPane1.setContentType("text/html");
         jPanel1.setLayout(new java.awt.BorderLayout());
         jTextArea1.setColumns(20);
@@ -94,17 +93,13 @@ public class ChatWindow extends javax.swing.JDialog {
         if (jTextArea1.getText().trim().isEmpty()) {
             return;
         }
-        ChatMessage message = new ChatMessage(mainWindow.getUserName(), jTextArea1.getText());
+        ChatMessage message = new ChatMessage(connectionManager.getUserName(), jTextArea1.getText());
         this.sendChatMessage(message);
         jTextArea1.setText("");
     }
 
     public void sendChatMessage(Message message) {
-        try {
-            mainWindow.getSocketUDP().sendMulticast(message.toByteArray());
-        } catch (IOException ex) {
-            Logger.getLogger(MainWindow.class.getName()).log(Level.SEVERE, null, ex);
-        }
+        connectionManager.sendUdpMulticast(message);
     }
 
     public void receiveChatMessage(ChatMessage message) {

pitiupi.chat/src/pitiupi/chat/net/ChatMessage.java

@@ -5,8 +5,8 @@
  */
 package pitiupi.chat.net;
 
-import pitiupi.net.Message;
-import pitiupi.net.Message;
+
+import pitiupi.models.Messages.Message;
 
 /**
  *

pitiupi.chat/src/pitiupi/chat/plugin/ChatPlugin.java

@@ -4,49 +4,44 @@
  */
 package pitiupi.chat.plugin;
 
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import pitiupi.GUI.MainWindow;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
 import pitiupi.chat.GUI.ChatMenu;
 import pitiupi.chat.GUI.ChatWindow;
 import pitiupi.chat.net.ChatMessage;
-import pitiupi.net.Message;
-import pitiupi.plugin.Plugin;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
+import pitiupi.models.Menus.MenuCategory;
+import pitiupi.models.Messages.Message;
+import pitiupi.models.Plugin;
 
 /**
  *
  * @author flavio
  */
-public class ChatPlugin implements Plugin {
+public class ChatPlugin extends Plugin {
 
     private ChatWindow chatWindow;
-    private MainWindow mainWindow;
 
-    public ChatPlugin() {
+    @Override
+    public void createPlugin(ConnectionManager connectionManager, GuiManager guiManager) {
+        this.chatWindow = new ChatWindow(connectionManager);
+        guiManager.createMenu(MenuCategory.Social, new ChatMenu(chatWindow));
     }
 
     @Override
-    public void createPlugin(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
-        this.chatWindow = new ChatWindow(mainWindow);
-        this.mainWindow.addMenu(new ChatMenu(chatWindow));
+    public List<Class<? extends Message>> getMessages() {
+        return List.of(ChatMessage.class);
     }
 
+
     @Override
-    public void receiveMessage(byte[] message) {
-        ByteArrayInputStream bis = new ByteArrayInputStream(message);
-        ObjectInputStream ois;
-        try {
-            ois = new ObjectInputStream(bis);
-            if (ois.readObject() instanceof ChatMessage msg) {
+    public void receiveMessage(Message message) {
+        if (message instanceof ChatMessage msg) {
             this.chatWindow.receiveChatMessage(msg);
         }
-        } catch (IOException ex) {
-            System.out.println(ex.toString());
-        } catch (ClassNotFoundException ex) {
-            System.out.println(ex.toString());
-        }
     }
 
     @Override
@@ -65,7 +60,9 @@ public class ChatPlugin implements Plugin {
     }
 
     @Override
-    public Message getMessage() {
-        return new ChatMessage();
+    public String getIdentifier() {
+        return "Pitiupi.Chat.Example";
     }
+
+
 }

pitiupi.mpChat/Makefile

@@ -0,0 +1,16 @@
+JAR = ../pitiupi/dist/pitiupi.jar
+OUT_DIR = out
+META-INF_DIR = src/META-INF
+DIST = dist/mpChat.jar
+
+SOURCES = $(shell find -name "*.java")
+
+all:
+	mkdir -p "$(OUT_DIR)"
+	mkdir -p "$(dir $(DIST))"
+	javac -cp "$(JAR)" -d "$(OUT_DIR)" $(SOURCES)
+	cp -r "$(META-INF_DIR)" "$(OUT_DIR)"
+	jar cf "$(DIST)" -C "$(OUT_DIR)" .
+
+clean:
+	rm -rf "$(OUT_DIR)"/*

pitiupi.mpChat/out/META-INF/services/pitiupi.plugin.Plugin

@@ -0,0 +1 @@
+plugin.MultiProtocolChat

pitiupi.mpChat/src/GUI/ChatMenu.java

@@ -0,0 +1,40 @@
+package GUI;
+
+import pitiupi.models.Menus.MenuCategory;
+import pitiupi.models.Menus.MulticastMenus.MulticastSubMenu;
+import plugin.MultiProtocolChat;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class ChatMenu extends MulticastSubMenu {
+    private final MultiProtocolChat multiProtocolChat;
+
+    public ChatMenu(MultiProtocolChat multiProtocolChat) {
+        this.multiProtocolChat = multiProtocolChat;
+        this.setText("MP-Chat");
+
+        JMenuItem startPrivateChat = new JMenuItem("start Private Chat");
+        startPrivateChat.addActionListener(e -> showPrivateChatDialog());
+        this.add(startPrivateChat);
+    }
+
+    public void newMenuItem(JMenuItem newMenuItem, ChatWindow chatWindow) {
+        newMenuItem.addActionListener(e -> chatWindow.setVisible(true));
+
+        this.add(newMenuItem);
+    }
+
+    public void removeMenuItem(JMenuItem removeMenuItem) {
+        this.remove(removeMenuItem);
+    }
+
+    private void showPrivateChatDialog() {
+
+    }
+
+    @Override
+    public String getText() {
+        return "MP-Chat";
+    }
+}

pitiupi.mpChat/src/GUI/ChatWindow.java

@@ -1,7 +1,7 @@
 package GUI;
 
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
+import net.MpChatMessage;
+import pitiupi.control.ConnectionManager;
 
 import javax.swing.*;
 import java.awt.*;
@@ -10,13 +10,13 @@ import java.net.UnknownHostException;
 
 public abstract class ChatWindow extends JFrame {
 
-    protected final MainWindow mainWindow;
+    protected final ConnectionManager connectionManager;
 
     private JTextArea receivedMessagesArea;
     protected JTextField messageField;
 
-    public ChatWindow(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
+    public ChatWindow(ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
         initComponents();
     }
 
@@ -63,20 +63,20 @@ public abstract class ChatWindow extends JFrame {
 
     protected abstract void initButtons(JPanel bottomPanel);
 
-    protected TestChatMessage createMessage(String tipoMensagem) {
+    protected MpChatMessage createMessage(String tipoMensagem) {
         try {
-            String nome = mainWindow.getUserName();
+            String nome = connectionManager.getUserName();
             String ip = InetAddress.getLocalHost().getHostAddress();
             String message = messageField.getText();
 
-            return new TestChatMessage(nome, ip, tipoMensagem, message);
+            return new MpChatMessage(nome, ip, tipoMensagem, message);
 
         } catch (UnknownHostException e) {
             throw new RuntimeException(e);
         }
     }
 
-    public void receiveMessage(TestChatMessage msg) {
+    public void receiveMessage(MpChatMessage msg) {
         SwingUtilities.invokeLater(() -> {
             String mensagem = String.format(
                     "[%s] %s (%s): %s%n",

pitiupi.mpChat/src/GUI/PrivateChatMenu.java

@@ -0,0 +1,38 @@
+package GUI;
+
+import control.ChatController;
+import pitiupi.models.Menus.UnicastMenus.UnicastActionMenu;
+import pitiupi.models.User;
+import plugin.MultiProtocolChat;
+
+import javax.swing.*;
+import java.awt.*;
+import java.net.InetAddress;
+
+public class PrivateChatMenu extends UnicastActionMenu {
+    PrivateChatWindow privateChatWindow;
+    private final MultiProtocolChat multiProtocolChat;
+    private final ChatController chatController;
+
+    public PrivateChatMenu(PrivateChatWindow PrivateChatWindow, MultiProtocolChat multiProtocolChat, ChatController chatController) {
+        this.privateChatWindow = PrivateChatWindow;
+        this.multiProtocolChat = multiProtocolChat;
+        this.chatController = chatController;
+    }
+
+    @Override
+    public void onClick(User user) {
+        if (multiProtocolChat.openConnection(user.getAddress())
+        else errorLabel.setVisible(true);
+
+        dialog.setContentPane(contentPanel);
+        dialog.pack();
+        dialog.setLocationRelativeTo(SwingUtilities.getWindowAncestor(privateChatWindow));
+        dialog.setVisible(true);
+    }
+
+    @Override
+    public String getText() {
+        return "start Private Chat";
+    }
+}

pitiupi.mpChat/src/GUI/PrivateChatWindow.java

@@ -1,7 +1,7 @@
 package GUI;
 
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
+import net.MpChatMessage;
+import pitiupi.control.ConnectionManager;
 import pitiupi.net.tcp.TcpConnection;
 
 import javax.swing.*;
@@ -13,10 +13,9 @@ public class PrivateChatWindow extends ChatWindow {
 
     private final TcpConnection connection;
 
-    public PrivateChatWindow(MainWindow mainWindow, TcpConnection connection) {
+    public PrivateChatWindow(ConnectionManager ConnectionManager, TcpConnection connection) {
+        super(ConnectionManager);
 	this.connection = connection;
-
-        super(mainWindow);
     }
 
     @Override
@@ -34,13 +33,11 @@ public class PrivateChatWindow extends ChatWindow {
 
     private void sendTCP() {
         try {
-            TestChatMessage msg = createMessage("TCP Private");
+            MpChatMessage msg = createMessage("TCP Private");
             connection.send(msg.toByteArray());
 
         } catch (Exception ex) {
-            Logger.getLogger(
-                    PrivateChatWindow.class.getName()
-            ).log(Level.SEVERE, null, ex);
+            Logger.getLogger(PrivateChatWindow.class.getName()).log(Level.SEVERE, null, ex);
         }
     }
 }

pitiupi.mpChat/src/GUI/PublicChatMenu.java

@@ -0,0 +1,21 @@
+package GUI;
+
+import pitiupi.models.Menus.MulticastMenus.MulticastActionMenu;
+
+public class PublicChatMenu extends MulticastActionMenu {
+    PublicChatWindow publicChatWindow;
+
+    PublicChatMenu(PublicChatWindow publicChatWindow) {
+        this.publicChatWindow = publicChatWindow;
+    }
+
+    @Override
+    public void onClick() {
+        publicChatWindow.setVisible(true);
+    }
+
+    @Override
+    public String getText() {
+        return "";
+    }
+}

pitiupi.mpChat/src/GUI/PublicChatWindow.java

@@ -1,7 +1,7 @@
 package GUI;
 
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
+import net.MpChatMessage;
+import pitiupi.control.ConnectionManager;
 
 import javax.swing.*;
 import java.awt.*;
@@ -13,8 +13,8 @@ public class PublicChatWindow extends ChatWindow {
 
     private JTextField ipField;
 
-    public PublicChatWindow(MainWindow mainWindow) {
-        super(mainWindow);
+    public PublicChatWindow(ConnectionManager connectionManager) {
+        super(connectionManager);
     }
 
     @Override
@@ -56,11 +56,11 @@ public class PublicChatWindow extends ChatWindow {
 
     private void sendTCP() {
         try {
-            TestChatMessage msg = createMessage("TCP Unicast");
+            MpChatMessage msg = createMessage("TCP Unicast");
 
             InetAddress ip = InetAddress.getByName(ipField.getText());
 
-            mainWindow.getSocketTCP().send(msg, ip);
+            connectionManager.sendTcp(msg, ip);
 
         } catch (Exception ex) {
             Logger.getLogger(PublicChatWindow.class.getName()).log(Level.SEVERE, null, ex);
@@ -69,11 +69,11 @@ public class PublicChatWindow extends ChatWindow {
 
     private void sendUDP() {
         try {
-            TestChatMessage msg = createMessage("UDP Unicast");
+            MpChatMessage msg = createMessage("UDP Unicast");
 
             InetAddress ip = InetAddress.getByName(ipField.getText());
 
-            mainWindow.getSocketUDP().sendUnicast(msg, ip);
+            connectionManager.sendUdpUnicast(msg, ip);
 
         } catch (Exception ex) {
             Logger.getLogger(PublicChatWindow.class.getName()).log(Level.SEVERE, null, ex);
@@ -82,9 +82,9 @@ public class PublicChatWindow extends ChatWindow {
 
     private void sendMulticast() {
         try {
-            TestChatMessage msg = createMessage("UDP Multicast");
+            MpChatMessage msg = createMessage("UDP Multicast");
 
-            mainWindow.getSocketUDP().sendMulticast(msg);
+            connectionManager.sendUdpMulticast(msg);
 
         } catch (Exception ex) {
             Logger.getLogger(PublicChatWindow.class.getName()).log(Level.SEVERE, null, ex);

pitiupi.mpChat/src/META-INF/services/pitiupi.models.Plugin

@@ -0,0 +1 @@
+plugin.MultiProtocolChat

pitiupi.mpChat/src/control/ChatController.java

@@ -4,25 +4,28 @@ import GUI.ChatMenu;
 import GUI.ChatWindow;
 import GUI.PrivateChatWindow;
 import GUI.PublicChatWindow;
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
+import net.MpChatMessage;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.PeerListener;
+import pitiupi.models.User;
 import pitiupi.net.tcp.TcpConnection;
 
 import javax.swing.*;
+import java.net.InetAddress;
 import java.util.HashMap;
+import java.util.List;
 
-public class ChatController {
-    MainWindow mainWindow;
+public class ChatController implements PeerListener {
+    ConnectionManager connectionManager;
     ChatMenu chatMenu;
 
     PublicChatWindow publicChatWindow;
 
-    private final HashMap<TcpConnection, JMenuItem> chatMenus;
     private final HashMap<TcpConnection, ChatWindow>  chatWindows;
 
-    public ChatController(MainWindow mainWindow, ChatMenu chatMenu) {
-        this.mainWindow = mainWindow;
-        publicChatWindow = new PublicChatWindow(mainWindow);
+    public ChatController(ConnectionManager connectionManager, ChatMenu chatMenu) {
+        this.connectionManager = connectionManager;
+        publicChatWindow = new PublicChatWindow(connectionManager);
 
         chatMenus = new HashMap<>();
         chatWindows = new HashMap<>();
@@ -35,7 +38,7 @@ public class ChatController {
     public void addChatWindow(TcpConnection tcpConnection) {
         if (chatWindows.containsKey(tcpConnection)) return;
 
-        PrivateChatWindow newChat = new PrivateChatWindow(mainWindow, tcpConnection);
+        PrivateChatWindow newChat = new PrivateChatWindow(connectionManager, tcpConnection);
         chatWindows.put(tcpConnection, newChat);
         JMenuItem newMenuItem = new JMenuItem();
         chatMenus.put(tcpConnection, newMenuItem);
@@ -52,10 +55,19 @@ public class ChatController {
         removedWindow.dispose();
     }
 
-    public void receivePublic(TestChatMessage message) {
+    public void receivePublic(MpChatMessage message) {
         publicChatWindow.receiveMessage(message);
     }
-    public void receivePrivate(TcpConnection tcpConnection, TestChatMessage message) {
+    public void receivePrivate(TcpConnection tcpConnection, MpChatMessage message) {
         chatWindows.get(tcpConnection).receiveMessage(message);
     }
+
+    public void openChatWindow(InetAddress address) {
+
+    }
+
+    @Override
+    public void onPeersChanged(List<User> list) {
+
+    }
 }

pitiupi.mpChat/src/net/MpChatMessage.java

@@ -1,21 +1,21 @@
 package net;
 
-import pitiupi.net.Message;
+import pitiupi.models.Messages.Message;
 
-public class TestChatMessage extends Message {
+public class MpChatMessage extends Message {
     private String nome;
     private String ip;
     private String tipoMensagem;
     private String message;
 
-    public TestChatMessage(String nome, String ip, String tipoMensagem, String message) {
+    public MpChatMessage(String nome, String ip, String tipoMensagem, String message) {
         this.nome = nome;
         this.ip = ip;
         this.tipoMensagem = tipoMensagem;
         this.message = message;
     }
 
-    public TestChatMessage(){}
+    public MpChatMessage(){}
 
     public String getNome() {
         return nome;

pitiupi.mpChat/src/plugin/MultiProtocolChat.java

@@ -2,11 +2,12 @@ package plugin;
 
 import GUI.ChatMenu;
 import control.ChatController;
-import net.TestChatMessage;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.Message;
+import net.MpChatMessage;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
+import pitiupi.models.Messages.Message;
 import pitiupi.net.tcp.TcpConnection;
-import pitiupi.plugin.PrivateConnectionPlugin;
+import pitiupi.models.Plugin;
 
 import javax.swing.*;
 import java.io.ByteArrayInputStream;
@@ -14,9 +15,10 @@ import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.net.InetAddress;
 
-public class TestChat implements PrivateConnectionPlugin{
+public class MultiProtocolChat extends Plugin {
     ChatController chatController;
-    MainWindow mainWindow;
+    ConnectionManager connectionManager;
+    GuiManager guiManager;
 
     @Override
     public String getName() {
@@ -39,47 +41,50 @@ public class TestChat implements PrivateConnectionPlugin{
     }
 
     @Override
-    public void createPlugin(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
+    public void createPlugin(ConnectionManager connectionManager, GuiManager guiManager) {
+        this.connectionManager = connectionManager;
+        this.guiManager = guiManager;
 
         ChatMenu chatMenu = new ChatMenu(this);
-        chatController = new ChatController(mainWindow, chatMenu);
-        mainWindow.addMenu(chatMenu);
+        chatController = new ChatController(connectionManager, chatMenu);
+        guiManager.addMulticastMenu(chatMenu);
     }
 
     @Override
     public Message getMessage() {
-        return new TestChatMessage();
+        return new MpChatMessage();
     }
 
     @Override
     public void receiveMessage(byte[] message) {
-        TestChatMessage testChatMessage = parseMessage(message);
-        chatController.receivePublic(testChatMessage);
+        MpChatMessage mpChatMessage = parseMessage(message);
+        chatController.receivePublic(mpChatMessage);
     }
 
-
     @Override
-    public void receivePrivateConnection(TcpConnection tcpConnection) {
+    public boolean receivePrivateConnection(TcpConnection connection) {
         SwingUtilities.invokeLater(() -> {
-            chatController.addChatWindow(tcpConnection);
+            chatController.addChatWindow(connection);
         });
+        return true;
     }
 
     @Override
-    public void receiveBytes(TcpConnection connection, byte[] bytes) {
-        TestChatMessage testChatMessage = parseMessage(bytes);
-        chatController.receivePrivate(connection, testChatMessage);
+    public boolean receiveBytes(TcpConnection connection, byte[] bytes) {
+        MpChatMessage mpChatMessage = parseMessage(bytes);
+        chatController.receivePrivate(connection, mpChatMessage);
+        return true;
     }
 
     @Override
-    public void onSocketClosed(TcpConnection tcpConnection) {
-        chatController.removeChatWindow(tcpConnection);
+    public boolean onSocketClosed(TcpConnection connection) {
+        chatController.removeChatWindow(connection);
+        return true;
     }
 
     public boolean openConnection(String ip) {
         try {
-            mainWindow.getSocketTCP().createPrivateConnection(InetAddress.getByName(ip), getIdentifier(), getIdentifier());
+            connectionManager.connectPluginTcp(InetAddress.getByName(ip), getIdentifier(), getIdentifier());
             return true;
         }
         catch (Exception e) {
@@ -88,12 +93,12 @@ public class TestChat implements PrivateConnectionPlugin{
         return false;
     }
 
-    private TestChatMessage parseMessage(byte[] bytes) {
+    private MpChatMessage parseMessage(byte[] bytes) {
         ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
         ObjectInputStream ois;
         try {
             ois = new ObjectInputStream(bis);
-            if (ois.readObject() instanceof TestChatMessage msg) {
+            if (ois.readObject() instanceof MpChatMessage msg) {
                 return msg;
             }
         } catch (IOException | ClassNotFoundException ex) {

pitiupi.screenCast/.idea/workspace.xml

@@ -5,24 +5,10 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="083e72ce-fa9b-4ddf-a0ef-24105aa3eabb" name="Changes" comment="">
-      <change beforePath="$PROJECT_DIR$/../.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../.idea/misc.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../.idea/vcs.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/.idea/misc.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/build/built-jar.properties" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/build/built-jar.properties" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/build/classes/pitiupi/chat/GUI/ChatWindow.class" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/build/classes/pitiupi/chat/GUI/ChatWindow.class" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/dist/pitiupi.chat.jar" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/pitiupi.chat.iml" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/pitiupi.chat.iml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi.chat/src/pitiupi/chat/GUI/ChatWindow.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi.chat/src/pitiupi/chat/GUI/ChatWindow.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/../pitiupi.testSocket/Makefile" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/build/built-jar.properties" beforeDir="false" afterPath="$PROJECT_DIR$/build/built-jar.properties" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/build/classes/pitiupi/screenCast/GUI/ScreenCastWindow.class" beforeDir="false" afterPath="$PROJECT_DIR$/build/classes/pitiupi/screenCast/GUI/ScreenCastWindow.class" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/dist/pitiupi.screenCast.jar" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/pitiupi/screenCast/GUI/ScreenCastWindow.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/pitiupi/screenCast/GUI/ScreenCastWindow.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.chat.jar" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.chat.jar" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.screenCast.jar" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/plugins/pitiupi.screenCast.jar" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/src/pitiupi/GUI/MainWindow.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/src/pitiupi/GUI/MainWindow.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../pitiupi/src/pitiupi/control/HeartbeatManager.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/src/pitiupi/control/HeartbeatManager.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../pitiupi/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/.idea/misc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/../pitiupi/src/pitiupi/net/tcp/ConnectionFactory.java" beforeDir="false" afterPath="$PROJECT_DIR$/../pitiupi/src/pitiupi/net/tcp/ConnectionFactory.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -46,10 +32,12 @@
     "RunOnceActivity.ShowReadmeOnStart": "true",
     "RunOnceActivity.TerminalTabsStorage.copyFrom.TerminalArrangementManager.252": "true",
     "RunOnceActivity.git.unshallow": "true",
-    "git-widget-placeholder": "feature/unicast",
+    "RunOnceActivity.typescript.service.memoryLimit.init": "true",
+    "codeWithMe.voiceChat.enabledByDefault": "false",
+    "git-widget-placeholder": "feature/separacao-gerenciadores",
     "ignore.virus.scanning.warn.message": "true",
     "kotlin-language-version-configured": "true",
-    "last_opened_file_path": "C:/Users/extre/OneDrive/Documentos/Faculdade/2026_02/Monitoria/Pitiupi/pitiupi.screenCast",
+    "last_opened_file_path": "C:/Users/Gustavo/OneDrive/Documentos/Faculdade/2026_2/Monitoria/pitiupi/pitiupi.screenCast",
     "project.structure.last.edited": "Modules",
     "project.structure.proportion": "0.15",
     "project.structure.side.proportion": "0.2",
@@ -57,17 +45,6 @@
   }
 }]]></component>
   <component name="RunManager">
-    <configuration default="true" type="JetRunConfigurationType">
-      <module name="pitiupi.screenCast" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
-    <configuration default="true" type="KotlinStandaloneScriptRunConfigurationType">
-      <module name="pitiupi.screenCast" />
-      <option name="filePath" />
-      <method v="2" />
-    </configuration>
     <configuration default="true" type="PythonConfigurationType" factoryName="Python">
       <module name="pitiupi.screenCast" />
       <option name="ENV_FILES" value="" />
@@ -102,11 +79,23 @@
       <option name="ADD_SOURCE_ROOTS" value="true" />
       <method v="2" />
     </configuration>
+    <configuration default="true" type="JetRunConfigurationType">
+      <module name="pitiupi.screenCast" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration default="true" type="KotlinStandaloneScriptRunConfigurationType">
+      <module name="pitiupi.screenCast" />
+      <option name="filePath" />
+      <method v="2" />
+    </configuration>
   </component>
   <component name="SharedIndexes">
     <attachedChunks>
       <set>
-        <option value="bundled-jdk-9823dce3aa75-bf35d07a577b-intellij.indexing.shared.core-IU-252.28539.54" />
+        <option value="bundled-jdk-30f59d01ecdd-37e91769500f-intellij.indexing.shared.core-IU-261.26222.65" />
+        <option value="bundled-js-predefined-d6986cc7102b-31caf2ab9e3c-JavaScript-IU-261.26222.65" />
       </set>
     </attachedChunks>
   </component>
@@ -120,4 +109,7 @@
     </task>
     <servers />
   </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
+  </component>
 </project>

pitiupi.screenCast/build/built-jar.properties

@@ -1,6 +1,6 @@
-#Mon, 17 Aug 2026 14:35:40 -0300
+#Tue, 29 Sep 2026 11:04:58 -0300
 
 
-C\:\\Users\\extre\\OneDrive\\Documentos\\Faculdade\\2026_02\\Monitoria\\Pitiupi\\pitiupi.screenCast=
+C\:\\Users\\Gustavo\\OneDrive\\Documentos\\Faculdade\\2026_2\\Monitoria\\pitiupi\\pitiupi.screenCast=
 
-C\:\\Users\\extre\\OneDrive\\Documentos\\Faculdade\\2026_02\\Monitoria\\Pitiupi\\pitiupi=
+C\:\\Users\\Gustavo\\OneDrive\\Documentos\\Faculdade\\2026_2\\Monitoria\\pitiupi\\pitiupi=

pitiupi.screenCast/src/pitiupi.screenCast.iml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="module-library">
+      <library>
+        <CLASSES>
+          <root url="jar://$MODULE_DIR$/../../pitiupi/dist/pitiupi.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

pitiupi.screenCast/src/pitiupi/screenCast/GUI/ScreenCastWindow.java

@@ -5,6 +5,8 @@
  */
 package pitiupi.screenCast.GUI;
 
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
 import pitiupi.screenCast.control.AlarmClock;
 import pitiupi.screenCast.control.ImageTransformation;
 import pitiupi.screenCast.control.ScreenShot;
@@ -38,10 +40,13 @@ public class ScreenCastWindow extends javax.swing.JFrame {
     public final static int TIME = 1000;
 
     private float compressRatio;
-    private final MainWindow mainWindow;
+    private final ConnectionManager connectionManager;
+    private final GuiManager guiManager;
+
+    public ScreenCastWindow(ConnectionManager connectionManager, GuiManager guiManager) {
+        this.connectionManager = connectionManager;
+        this.guiManager = guiManager;
 
-    public ScreenCastWindow(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
         this.compressRatio = 0.5f;
         this.initComponents();
     }
@@ -91,19 +96,12 @@ public class ScreenCastWindow extends javax.swing.JFrame {
             BufferedImage image = ScreenShot.takeAShot();
             BufferedImage rescaled = ImageTransformation.resize(image, 1024, 768);
             byte[] byteImage = ImageTransformation.compress(rescaled, compressRatio);
-            ScreenCastMessage message = new ScreenCastMessage(this.mainWindow.getUserName(), byteImage);
-            msg = message.toByteArray();
+            ScreenCastMessage message = new ScreenCastMessage(this.connectionManager.getUserName(), byteImage);
+
+            if (!connectionManager.sendUdpMulticast(message)) this.compressRatio -= 0.1f;
         } catch (AWTException | IOException ex) {
             Logger.getLogger(AlarmClock.class.getName()).log(Level.SEVERE, null, ex);
         }
-        if (msg != null) {
-            try {
-                this.mainWindow.getSocketUDP().sendMulticast(msg);
-            } catch (IOException ex) {
-                System.out.println(ex.toString());
-                this.compressRatio -= 0.1f;
-            }
-        }
     }
 
     public void receiveScreenCastMessage(ScreenCastMessage message) {

pitiupi.screenCast/src/pitiupi/screenCast/plugin/ScreenCastPlugin.java

@@ -8,6 +8,8 @@ import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.ObjectInputStream;
 import pitiupi.GUI.MainWindow;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
 import pitiupi.net.Message;
 import pitiupi.plugin.Plugin;
 import pitiupi.screenCast.GUI.ScreenCastMenu;
@@ -21,7 +23,6 @@ import pitiupi.screenCast.net.ScreenCastMessage;
 public class ScreenCastPlugin implements Plugin {
 
     private ScreenCastWindow screenCastWindow;
-    private MainWindow mainWindow;
 
     @Override
     public String getName() {
@@ -39,10 +40,14 @@ public class ScreenCastPlugin implements Plugin {
     }
 
     @Override
-    public void createPlugin(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
-        this.screenCastWindow = new ScreenCastWindow(mainWindow);
-        this.mainWindow.addMenu(new ScreenCastMenu(screenCastWindow));
+    public String getIdentifier() {
+        return "Pitiupi.ScreenCast.Example";
+    }
+
+    @Override
+    public void createPlugin(ConnectionManager connectionManager, GuiManager guiManager) {
+        this.screenCastWindow = new ScreenCastWindow(connectionManager, guiManager);
+        guiManager.addMenu(new ScreenCastMenu(screenCastWindow));
     }
 
     @Override
@@ -54,9 +59,7 @@ public class ScreenCastPlugin implements Plugin {
             if (ois.readObject() instanceof ScreenCastMessage msg) {
                 this.screenCastWindow.receiveScreenCastMessage(msg);
             }
-        } catch (IOException ex) {
-            System.out.println(ex.toString());
-        } catch (ClassNotFoundException ex) {
+        } catch (IOException | ClassNotFoundException ex) {
             System.out.println(ex.toString());
         }
     }

pitiupi.testSocket/out/META-INF/services/pitiupi.plugin.Plugin

@@ -1 +0,0 @@
-plugin.TestChat

pitiupi.testSocket/src/GUI/ChatMenu.java

@@ -1,84 +0,0 @@
-package GUI;
-
-import plugin.TestChat;
-
-import javax.swing.*;
-import java.awt.*;
-import java.awt.event.ActionEvent;
-import java.util.ArrayList;
-import java.util.List;
-
-public class ChatMenu extends JMenu {
-    private final TestChat testChat;
-
-    public ChatMenu(TestChat testChat) {
-        this.testChat = testChat;
-        this.setText("MP-Chat");
-
-        JMenuItem startPrivateChat = new JMenuItem("start Private Chat");
-        startPrivateChat.addActionListener(_ -> showPrivateChatDialog());
-        this.add(startPrivateChat);
-    }
-
-    public void newMenuItem(JMenuItem newMenuItem, ChatWindow chatWindow) {
-        newMenuItem.addActionListener(_ -> chatWindow.setVisible(true));
-
-        this.add(newMenuItem);
-    }
-
-    public void removeMenuItem(JMenuItem removeMenuItem) {
-        this.remove(removeMenuItem);
-    }
-
-    private void showPrivateChatDialog() {
-        JDialog dialog = new JDialog(
-                SwingUtilities.getWindowAncestor(this),
-                "Novo chat privado",
-                Dialog.ModalityType.APPLICATION_MODAL
-        );
-
-        JTextField ipField = new JTextField();
-
-        JButton startButton = new JButton("Iniciar");
-        JButton cancelButton = new JButton("Cancelar");
-
-        JPanel contentPanel = new JPanel(new BorderLayout(10, 10));
-        contentPanel.setBorder(
-                BorderFactory.createEmptyBorder(10, 10, 10, 10)
-        );
-
-        JPanel ipPanel = new JPanel(new BorderLayout(5, 5));
-        ipPanel.add(new JLabel("IP:"), BorderLayout.WEST);
-        ipPanel.add(ipField, BorderLayout.CENTER);
-
-        JPanel buttonsPanel = new JPanel(
-                new FlowLayout(FlowLayout.RIGHT)
-        );
-
-        buttonsPanel.add(cancelButton);
-        buttonsPanel.add(startButton);
-
-        JLabel errorLabel = new JLabel("Não foi possível estabelecer a conexão.");
-        errorLabel.setForeground(Color.RED);
-        errorLabel.setVisible(false);
-
-        contentPanel.add(errorLabel, BorderLayout.NORTH);
-        contentPanel.add(ipPanel, BorderLayout.CENTER);
-        contentPanel.add(buttonsPanel, BorderLayout.SOUTH);
-
-        cancelButton.addActionListener(e -> dialog.dispose());
-
-        startButton.addActionListener(e -> {
-            String ip = ipField.getText();
-
-            if (testChat.openConnection(ip)) dialog.dispose();
-            else errorLabel.setVisible(true);
-
-        });
-
-        dialog.setContentPane(contentPanel);
-        dialog.pack();
-        dialog.setLocationRelativeTo(SwingUtilities.getWindowAncestor(this));
-        dialog.setVisible(true);
-    }
-}

pitiupi.testSocket/src/META-INF/services/pitiupi.plugin.Plugin

@@ -1 +0,0 @@
-plugin.TestChat

pitiupi/.idea/misc.xml

@@ -1,5 +1,5 @@
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="openjdk-26" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_26_PREVIEW" project-jdk-name="openjdk-26" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

pitiupi/docs/Documentation.md

@@ -468,10 +468,10 @@ MeusPlugins
     |
     +---services
         |
-        +---pitiupi.plugin.Plugin
+        +---pitiupi.models.Plugin
 ```
 
-O arquivo `pitiupi.plugin.Plugin` deve conter o nome completo das classes que
+O arquivo `pitiupi.models.Plugin` deve conter o nome completo das classes que
 implementam a interface Plugin:
 
 ```

pitiupi/nbproject/project.properties

@@ -46,8 +46,8 @@ javac.modulepath=
 javac.processormodulepath=
 javac.processorpath=\
     ${javac.classpath}
-javac.source=25
-javac.target=25
+javac.source=17
+javac.target=17
 javac.test.classpath=\
     ${javac.classpath}:\
     ${build.classes.dir}

pitiupi/src/pitiupi/GUI/MainWindow.java

@@ -5,14 +5,13 @@
  */
 package pitiupi.GUI;
 
-import pitiupi.net.tcp.SocketTCP;
-import pitiupi.net.udp.SocketUDP;
-import java.util.ArrayList;
-import java.util.List;
-import javax.swing.JMenu;
-import pitiupi.control.PluginLoader;
-import pitiupi.plugin.Plugin;
-import pitiupi.control.HeartbeatManager;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
+import pitiupi.control.plugins.PluginManager;
+
+import javax.swing.*;
+
+import java.awt.*;
 
 /**
  * Janela principal da aplicação.
@@ -28,28 +27,15 @@ import pitiupi.control.HeartbeatManager;
  * @author tony
  * @author Gustavo
  */
-public class MainWindow extends javax.swing.JFrame {
+public class MainWindow extends JFrame {
 
-    private final MenuBar menuBar;
-    private javax.swing.JScrollPane jScrollPane1;
-    private javax.swing.JLabel status;
-    private javax.swing.JPanel statusPanel;
-    private javax.swing.JTabbedPane tabbedPane;
+    private MenuBar menuBar;
+    private JLabel status;
+    OnlineUsersPanel onlineUsersPanel;
 
-    private HeartbeatManager heartbeatManager;
-    private OnlineUsersPanel onlineUsersPanel;
-
-
-    private SocketUDP socketUDP;
-    private SocketTCP socketTCP;
-
-    private String userName;
-    private int port;
-
-    private String pitiupiIdentifier;
-
-    private PluginLoader pluginManager;
-    private final List<Plugin> plugins;
+    private final ConnectionManager connectionManager;
+    private final PluginManager pluginManager;
+    private final GuiManager guiManager;
 
     /**
      * Cria a janela principal da aplicação.
@@ -58,62 +44,53 @@ public class MainWindow extends javax.swing.JFrame {
      * @param port porta utilizada na comunicação multicast.
      */
     public MainWindow(String userName, int port) {
-        this.userName = userName;
-        this.port = port;
-        this.pitiupiIdentifier = "Pitiupi.Alice.2026";
-        this.menuBar = new MenuBar(this);
-        this.plugins = new ArrayList<>();
-        this.initComponents();
-    }
+        initMenu();
+
+        pluginManager = new PluginManager();
+        connectionManager = new ConnectionManager(this, userName, pluginManager, port);
+
+        initUserPanel();
+        initStatusPanel();
+
+        guiManager = new GuiManager(this, menuBar, onlineUsersPanel);
+
+        loadPlugins();
+
+        this.pack();
 
-    private void initComponents() {
-        initGUI();
-        initSocket();
-        initHeartbeat();
-        initPlugins();
         this.setSize(new java.awt.Dimension(1024, 768));
     }
 
-    private void initGUI() {
+    private void initMenu() {
+        menuBar = new MenuBar(this);
+
         this.setJMenuBar(menuBar);
         this.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
-        this.setTitle("Share My Sheet");
+        this.setTitle("Pitiupi");
 
-        jScrollPane1 = new javax.swing.JScrollPane();
-        tabbedPane = new javax.swing.JTabbedPane();
-        statusPanel = new javax.swing.JPanel();
-        status = new javax.swing.JLabel();
+        javax.swing.JScrollPane jScrollPane1 = new javax.swing.JScrollPane();
+        javax.swing.JTabbedPane tabbedPane = new javax.swing.JTabbedPane();
 
         jScrollPane1.setViewportView(tabbedPane);
-        statusPanel.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.RIGHT));
-        status.setText("Connected on port " + this.port + " name " + this.userName);
-        statusPanel.add(status);
 
         this.getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
-        this.getContentPane().add(statusPanel, java.awt.BorderLayout.PAGE_END);
-
-        this.pack();
     }
 
-    private void initSocket() {
-        this.socketUDP = new SocketUDP(this);
-        this.socketTCP = new SocketTCP(this);
-
-        this.socketUDP.start();
-        this.socketTCP.start();
+    private void initUserPanel() {
+        onlineUsersPanel = new OnlineUsersPanel();
+        this.connectionManager.addPeerListener(onlineUsersPanel);
+        this.getContentPane().add(onlineUsersPanel, java.awt.BorderLayout.LINE_END);
     }
 
-    private void initHeartbeat() {
-        this.heartbeatManager = new HeartbeatManager(this);
-        this.onlineUsersPanel = new OnlineUsersPanel();
-        this.heartbeatManager.addPeerListener(this.onlineUsersPanel);
-        this.getContentPane().add(this.onlineUsersPanel, java.awt.BorderLayout.LINE_END);
-        this.heartbeatManager.start();
-    }
+    private void initStatusPanel() {
+        JPanel statusPanel = new JPanel();
+        status = new JLabel();
 
-    private void initPlugins() {
-        this.pluginManager = new PluginLoader(this);
-        this.pluginManager.loadPlugins();
+        statusPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+        updateStatus();
+        statusPanel.add(status);
+
+        this.getContentPane().add(statusPanel, BorderLayout.PAGE_END);
     }
 
     public void exit() {
@@ -122,65 +99,21 @@ public class MainWindow extends javax.swing.JFrame {
         System.exit(0);
     }
 
-    public HeartbeatManager getHeartbeatManager() {
-        return heartbeatManager;
+    public ConnectionManager getConnectionManager() {
+        return connectionManager;
     }
 
-    public String getUserName(){
-        return this.userName;
-    }
-
-    public String getIdentifier(){
-        return this.pitiupiIdentifier;
-    }
-    
-    public void addMenu(JMenu menu) {
-        this.menuBar.addPlugin(menu);
-    }
-
-    public int getPort() {
-        return this.port;
-    }
-
-    public SocketUDP getSocketUDP() {
-        return this.socketUDP;
-    }
-
-    public SocketTCP getSocketTCP() {
-        return this.socketTCP;
-    }
-
-    public List<Plugin> getPlugins() {
-        return plugins;
+    public void loadPlugins() {
+        pluginManager.loadPlugins(connectionManager, guiManager);
     }
 
     public void setUserName(String userName) {
-        this.userName = userName;
-        updateStatus();
-    }
-
-    public void setPort(int port) {
-        this.port = port;
-        reconnect();
+        connectionManager.setUserName(userName);
         updateStatus();
     }
 
     private void updateStatus() {
-        this.status.setText("Connected on port " + this.port + " name " + this.userName);
+        this.status.setText("Connected on port " + connectionManager.getPort() + " name " + connectionManager.getUserName());
     }
 
-    private void reconnect() {
-        if (this.socketUDP != null) {
-            this.socketUDP.close();
-        }
-        if (this.socketTCP != null) {
-            this.socketTCP.close();
-        }
-
-        this.socketUDP = new SocketUDP(this);
-        this.socketTCP = new SocketTCP(this);
-
-        this.socketUDP.start();
-        this.socketTCP.start();
-    }
 }

pitiupi/src/pitiupi/GUI/MenuBar.java

@@ -5,8 +5,14 @@
  */
 package pitiupi.GUI;
 
-import javax.swing.JMenu;
-import javax.swing.JMenuBar;
+import pitiupi.models.Menus.MenuCategory;
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.InputEvent;
+import java.awt.event.KeyEvent;
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * Barra de menus principal da aplicação.
@@ -21,12 +27,14 @@ import javax.swing.JMenuBar;
  */
 public class MenuBar extends JMenuBar {
 
-    private javax.swing.JMenuItem setupMenu;
-    private javax.swing.JMenuItem aboutMenu;
-    private javax.swing.JMenu fileMenu;
-    private javax.swing.JMenu helpMenu;
-    private javax.swing.JMenu pluginMenu;
-    private javax.swing.JMenuItem exitMenu;
+    private JMenuItem preferencesMenu;
+    private JMenuItem aboutMenu;
+    private JMenu fileMenu;
+    private JMenu helpMenu;
+    private JMenu pluginMenu;
+    private Map<MenuCategory, JMenu> categories;
+
+    private JMenuItem exitMenu;
     private final MainWindow mainWindow;
 
     /**
@@ -40,63 +48,70 @@ public class MenuBar extends JMenuBar {
     }
 
     private void initComponents() {
-        fileMenu = new javax.swing.JMenu();
-        exitMenu = new javax.swing.JMenuItem();
-        helpMenu = new javax.swing.JMenu();
-        pluginMenu = new javax.swing.JMenu();
-        setupMenu = new javax.swing.JMenuItem();
-        aboutMenu = new javax.swing.JMenuItem();
+        initFileMenu();
+        initPluginMenu();
+        initHelpMenu();
+    }
 
-        fileMenu.setText("File");
-        exitMenu.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_F4, java.awt.event.InputEvent.ALT_MASK));
-        exitMenu.setText("Exit");
+    private void initFileMenu() {
+        fileMenu = new JMenu("File");
+        exitMenu = new JMenuItem("Exit");
+
+        exitMenu.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F4, InputEvent.ALT_DOWN_MASK));
         exitMenu.addActionListener(this::exitMenuActionPerformed);
         fileMenu.add(exitMenu);
         this.add(fileMenu);
+    }
+
+    private void initPluginMenu() {
+        pluginMenu = new JMenu("Plugin");
+        categories = new HashMap<>();
+
+        for (MenuCategory category : MenuCategory.values()) {
+            JMenu newCategoryMenu = new JMenu(category.toString());
+
+            pluginMenu.add(newCategoryMenu);
+            categories.put(category, newCategoryMenu);
+        }
 
-        pluginMenu.setText("Plugin");
         this.add(pluginMenu);
+    }
 
-        helpMenu.setText("Help");
+    private void initHelpMenu() {
+        helpMenu = new JMenu("Help");
+        preferencesMenu = new JMenuItem("Preferences");
+        aboutMenu = new JMenuItem("About");
 
-        setupMenu.setText("Preferences");
-        setupMenu.addActionListener(this::setupMenuActionPerformed);
-        helpMenu.add(setupMenu);
+        preferencesMenu.addActionListener(this::setupMenuActionPerformed);
+        helpMenu.add(preferencesMenu);
 
-        aboutMenu.setText("About");
         aboutMenu.addActionListener(this::aboutMenuActionPerformed);
         helpMenu.add(aboutMenu);
 
         this.add(helpMenu);
     }
 
-    private void exitMenuActionPerformed(java.awt.event.ActionEvent evt) {
+    private void exitMenuActionPerformed(ActionEvent evt) {
         mainWindow.exit();
     }
 
-
-   private void setupMenuActionPerformed(java.awt.event.ActionEvent evt) {
+   private void setupMenuActionPerformed(ActionEvent evt) {
         Login login = new Login();
         login.setVisible(true);
 
         mainWindow.setUserName(login.getName());
-        mainWindow.setPort(login.getPort());
+        mainWindow.getConnectionManager().setPort(login.getPort());
 
         login.dispose();
     }
 
-    private void aboutMenuActionPerformed(java.awt.event.ActionEvent evt) {
+    private void aboutMenuActionPerformed(ActionEvent evt) {
         About about = new About();
         about.setVisible(true);
     }
 
-    /**
-     * Adiciona um menu fornecido por um plugin à seção de plugins da barra
-     * de menus.
-     *
-     * @param menu menu criado pelo plugin.
-     */
-    public void addPlugin(JMenu menu){
-     this.pluginMenu.add(menu);
+    public void addPluginMenu(MenuCategory category, JMenuItem menu){
+        System.out.println("addPluginMenu");
+        categories.get(category).add(menu);
     }
 }

pitiupi/src/pitiupi/GUI/OnlineUsersPanel.java

@@ -2,14 +2,16 @@ package pitiupi.GUI;
 
 import java.awt.BorderLayout;
 import java.awt.Dimension;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.HashMap;
 import java.util.List;
-import javax.swing.BorderFactory;
-import javax.swing.DefaultListModel;
-import javax.swing.JList;
-import javax.swing.JPanel;
-import javax.swing.JScrollPane;
-import javax.swing.SwingUtilities;
-import pitiupi.control.PeerInfo;
+import java.util.Map;
+import java.util.function.Consumer;
+import javax.swing.*;
+
+import pitiupi.models.Menus.MenuCategory;
+import pitiupi.models.User;
 import pitiupi.control.PeerListener;
 
 /**
@@ -20,10 +22,16 @@ import pitiupi.control.PeerListener;
  */
 public class OnlineUsersPanel extends JPanel implements PeerListener {
 
-    private final DefaultListModel<String> listModel;
-    private final JList<String> userList;
+    private final DefaultListModel<User> listModel;
+    private final JList<User> userList;
+    JPopupMenu menu;
+    private Map<MenuCategory, JMenu> categories;
 
     public OnlineUsersPanel() {
+        menu = new JPopupMenu();
+        categories = new HashMap<>();
+        initMenu();
+
         setLayout(new BorderLayout());
         setBorder(BorderFactory.createTitledBorder("Online"));
         setPreferredSize(new Dimension(160, 0));
@@ -31,6 +39,48 @@ public class OnlineUsersPanel extends JPanel implements PeerListener {
         listModel = new DefaultListModel<>();
         userList = new JList<>(listModel);
         add(new JScrollPane(userList), BorderLayout.CENTER);
+
+        setupUserListActions();
+    }
+
+    private void initMenu() {
+        for (MenuCategory category : MenuCategory.values()) {
+            JMenu newCategory = new JMenu(category.toString());
+
+            menu.add(newCategory);
+            categories.put(category, newCategory);
+        }
+    }
+
+    private void setupUserListActions() {
+        userList.addMouseListener(new MouseAdapter() {
+
+            @Override
+            public void mouseClicked(MouseEvent e) {
+                int index = userList.locationToIndex(e.getPoint());
+
+                if (index == -1) {
+                    return;
+                }
+
+                userList.setSelectedIndex(index);
+                menu.show(userList, e.getX(), e.getY());
+            }
+        });
+    }
+
+    public void initUnicastMenu(JMenuItem menuItem, Consumer<User> action) {
+        menuItem.addActionListener(e -> {
+            User user = userList.getSelectedValue();
+
+            if (user != null) {
+                action.accept(user);
+            }
+        });
+    }
+
+    public void addUnicastMenu(MenuCategory category, JMenuItem menuItem) {
+        categories.get(category).add(menuItem);
     }
 
     /**
@@ -39,11 +89,11 @@ public class OnlineUsersPanel extends JPanel implements PeerListener {
      * @param peers lista atualizada de usuários ativos na rede.
      */
     @Override
-    public void onPeersChanged(List<PeerInfo> peers) {
+    public void onPeersChanged(List<User> peers) {
         SwingUtilities.invokeLater(() -> {
             listModel.clear();
-            for (PeerInfo peer : peers) {
-                listModel.addElement(peer.toString());
+            for (User peer : peers) {
+                listModel.addElement(peer);
             }
         });
     }

pitiupi/src/pitiupi/control/ConnectionManager.java

@@ -0,0 +1,113 @@
+package pitiupi.control;
+
+import pitiupi.GUI.MainWindow;
+import pitiupi.control.plugins.PluginManager;
+import pitiupi.models.Messages.HeartbeatMessage;
+import pitiupi.models.Messages.Message;
+import pitiupi.net.tcp.SocketTCP;
+import pitiupi.net.tcp.TcpConnection;
+import pitiupi.net.udp.SocketUDP;
+
+import java.net.InetAddress;
+
+public class ConnectionManager {
+    private final String pitiupiIdentifier;
+
+    private final PluginManager pluginManager;
+
+    private final HeartbeatManager heartbeatManager;
+
+    private SocketTCP socketTCP;
+    private SocketUDP socketUDP;
+    private String username;
+    private int port;
+
+    public ConnectionManager(MainWindow main, String username, PluginManager pluginManager, int port) {
+        this.pluginManager = pluginManager;
+
+        this.username = username;
+        this.port = port;
+
+        pitiupiIdentifier = "Pitiupi.Alice.2026";
+
+        reconnect();
+
+        heartbeatManager = new HeartbeatManager(this);
+        heartbeatManager.start();
+    }
+
+    public TcpConnection connectPluginTcp(InetAddress destinationAdress, String senderId, String receiverId) {
+        return socketTCP.createPrivateConnection(destinationAdress, senderId, receiverId);
+    }
+
+    public boolean sendTcp(Message message, InetAddress destinationAddress) {
+        return socketTCP.send(message, destinationAddress);
+    }
+
+    public boolean sendUdpUnicast(Message message, InetAddress destinationAddress) {
+        try {
+            socketUDP.sendUnicast(message, destinationAddress);
+            return true;
+        } catch (Exception ex) {
+            return false;
+        }
+    }
+
+    public boolean sendUdpMulticast(Message message) {
+        try {
+            socketUDP.sendMulticast(message);
+            return true;
+        } catch (Exception e) {
+            System.err.println("Error sending UDP Multicast");
+        }
+        return false;
+    }
+
+    public void broadcastLocal(byte[] message) {
+        pluginManager.handleMessage(message);
+    }
+
+    public void addPeerListener(PeerListener peerListener) {
+        heartbeatManager.addPeerListener(peerListener);
+    }
+
+    public void receiveHeartbeat(HeartbeatMessage message, InetAddress destinationAddress) {
+        heartbeatManager.receiveHeartbeat(message, destinationAddress);
+    }
+
+    public void setPort(int port) {
+        this.port = port;
+        reconnect();
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    public String getIdentifier(){
+        return this.pitiupiIdentifier;
+    }
+
+    private void reconnect() {
+        if (this.socketUDP != null) {
+            this.socketUDP.close();
+        }
+        if (this.socketTCP != null) {
+            this.socketTCP.close();
+        }
+
+        this.socketUDP = new SocketUDP(this, pluginManager);
+        this.socketTCP = new SocketTCP(this, pluginManager);
+
+        this.socketUDP.start();
+        this.socketTCP.start();
+    }
+
+    public String getUserName() {
+        return this.username;
+    }
+
+    public void setUserName(String userName) {
+        this.username = userName;
+    }
+}

pitiupi/src/pitiupi/control/GuiManager.java

@@ -0,0 +1,95 @@
+package pitiupi.control;
+
+import pitiupi.GUI.MainWindow;
+import pitiupi.GUI.MenuBar;
+import pitiupi.GUI.OnlineUsersPanel;
+import pitiupi.models.Menus.*;
+import pitiupi.models.Menus.MulticastMenus.MulticastActionMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastMenu;
+import pitiupi.models.Menus.MulticastMenus.MulticastSubMenu;
+import pitiupi.models.Menus.UnicastMenus.UnicastActionMenu;
+import pitiupi.models.Menus.UnicastMenus.UnicastMenu;
+import pitiupi.models.Menus.UnicastMenus.UnicastSubMenu;
+
+import javax.swing.*;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class GuiManager {
+    private MainWindow mainWindow;
+    private MenuBar menuBar;
+    private OnlineUsersPanel onlineUsersPanel;
+
+    private Logger logger;
+
+    public GuiManager(MainWindow mainWindow, MenuBar menuBar,  OnlineUsersPanel onlineUsersPanel) {
+        this.mainWindow = mainWindow;
+        this.menuBar = menuBar;
+        this.onlineUsersPanel = onlineUsersPanel;
+        this.logger = Logger.getLogger(GuiManager.class.getName());
+    }
+
+    public void createMenu(MenuCategory category, Menu menu) {
+        System.out.println(
+                menu.getClass().getSuperclass().getSuperclass()
+        );
+
+        System.out.println(
+                MulticastMenu.class
+        );
+
+        System.out.println(
+                menu.getClass().getSuperclass().getSuperclass()
+                        == MulticastMenu.class
+        );
+        try {
+            JMenuItem newMenu = buildMenu(menu);
+            if (menu instanceof MulticastMenu) {
+                menuBar.addPluginMenu(category, newMenu);
+            }
+            if (menu instanceof UnicastMenu) {
+                onlineUsersPanel.addUnicastMenu(category, newMenu);
+            }
+        }
+        catch (IllegalArgumentException e) {
+            logger.log(Level.WARNING, e.getMessage());
+        }
+    }
+
+    private JMenuItem buildMenu(Menu menu) {
+        if (menu instanceof MulticastSubMenu multicastSubMenu) {
+            JMenu newMenu = new JMenu(menu.getText());
+
+            for (Menu child : multicastSubMenu.getMenus()) {
+                newMenu.add(buildMenu(child));
+            }
+
+            return newMenu;
+        }
+
+        if (menu instanceof UnicastSubMenu unicastSubMenu) {
+            JMenu newMenu = new JMenu(menu.getText());
+
+            for (Menu child : unicastSubMenu.getMenus()) {
+                newMenu.add(buildMenu(child));
+            }
+
+            return newMenu;
+        }
+
+        if (menu instanceof MulticastActionMenu multicastActionMenu) {
+            JMenuItem newMenu = new JMenuItem(menu.getText());
+            newMenu.addActionListener(e -> multicastActionMenu.onClick());
+            return newMenu;
+        }
+
+        if  (menu instanceof UnicastActionMenu unicastActionMenu) {
+            JMenuItem newMenu = new JMenuItem(menu.getText());
+
+            onlineUsersPanel.initUnicastMenu(newMenu, unicastActionMenu::onClick);
+            return newMenu;
+        }
+
+        throw new IllegalArgumentException("Invalid menu type");
+    }
+}

pitiupi/src/pitiupi/control/HeartbeatManager.java

@@ -1,6 +1,5 @@
 package pitiupi.control;
 
-import java.io.IOException;
 import java.net.InetAddress;
 import java.util.ArrayList;
 import java.util.List;
@@ -10,10 +9,9 @@ import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.HeartbeatMessage;
+
+import pitiupi.models.User;
+import pitiupi.models.Messages.HeartbeatMessage;
 import java.util.UUID;
 /**
  * Gerencia o mecanismo de heartbeat da aplicação.
@@ -28,9 +26,8 @@ public class HeartbeatManager {
 
     private static final long HEARTBEAT_INTERVAL_MS = 5000;
     private static final long PEER_TIMEOUT_MS = 15000; // ~3 batimentos perdidos
-
-    private final MainWindow mainWindow;
-    private final Map<String, PeerInfo> peers = new ConcurrentHashMap<>();
+    private final ConnectionManager connectionManager;
+    private final Map<String, User> peers = new ConcurrentHashMap<>();
     private final List<PeerListener> listeners = new CopyOnWriteArrayList<>();
     private ScheduledExecutorService scheduler;
     private final String instanceId = UUID.randomUUID().toString();
@@ -38,11 +35,9 @@ public class HeartbeatManager {
     /**
      * Cria um gerenciador de heartbeat associado à janela principal da aplicação.
      *
-     * @param mainWindow janela principal utilizada para obter o nome do usuário
-     * e o socket de comunicação.
      */
-    public HeartbeatManager(MainWindow mainWindow) {
-        this.mainWindow = mainWindow;
+    public HeartbeatManager(ConnectionManager connectionManager) {
+        this.connectionManager = connectionManager;
     }
 
     /**
@@ -64,12 +59,8 @@ public class HeartbeatManager {
     }
 
     private void announce() {
-        try {
-            HeartbeatMessage msg = new HeartbeatMessage(mainWindow.getUserName(), instanceId);
-            mainWindow.getSocketUDP().sendMulticast(msg);
-        } catch (IOException ex) {
-            Logger.getLogger(HeartbeatManager.class.getName()).log(Level.WARNING, "Falha ao enviar heartbeat", ex);
-        }
+        HeartbeatMessage msg = new HeartbeatMessage(connectionManager.getUserName(), instanceId);
+        connectionManager.sendUdpMulticast(msg);
     }
 
     // Chamado pelo Socket quando um pacote é identificado como heartbeat
@@ -94,7 +85,7 @@ public class HeartbeatManager {
         String key =  msg.getInstanceId();
         boolean isNew = !peers.containsKey(key);
 
-        PeerInfo peer = peers.computeIfAbsent(key, k -> new PeerInfo(msg.getUserName(), from, msg.getTimestamp()));
+        User peer = peers.computeIfAbsent(key, k -> new User(msg.getUserName(), from, msg.getTimestamp()));
         peer.touch(System.currentTimeMillis());
 
         if (isNew) {
@@ -111,7 +102,7 @@ public class HeartbeatManager {
     }
 
     private void notifyListeners() {
-        List<PeerInfo> snapshot = new ArrayList<>(peers.values());
+        List<User> snapshot = new ArrayList<>(peers.values());
         for (PeerListener l : listeners) {
             l.onPeersChanged(snapshot);
         }
@@ -144,7 +135,7 @@ public class HeartbeatManager {
      *
      * @return lista contendo os peers atualmente conhecidos.
      */
-    public List<PeerInfo> getPeers() {
+    public List<User> getPeers() {
         return new ArrayList<>(peers.values());
     }
 }

pitiupi/src/pitiupi/control/PeerListener.java

@@ -1,5 +1,7 @@
 package pitiupi.control;
 
+import pitiupi.models.User;
+
 import java.util.List;
 
 /**
@@ -17,5 +19,5 @@ public interface PeerListener {
      *
      * @param peers lista atualizada de usuários ativos.
      */
-    void onPeersChanged(List<PeerInfo> peers);
+    void onPeersChanged(List<User> peers);
 }

pitiupi/src/pitiupi/control/PluginLoader.java

@@ -1,74 +0,0 @@
-/*
- * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
- * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
- */
-package pitiupi.control;
-
-import java.awt.List;
-import java.io.File;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLClassLoader;
-import java.util.ArrayList;
-import java.util.ServiceLoader;
-import java.util.Vector;
-import pitiupi.GUI.MainWindow;
-import pitiupi.Main;
-import pitiupi.plugin.Plugin;
-
-/**
- * Responsável por localizar, carregar e registrar os plugins
- * presentes no diretório {@code plugins}.
- *
- * <p>Os plugins são descobertos utilizando {@link java.util.ServiceLoader}
- * e devem estar empacotados como arquivos JAR contendo a configuração
- * {@code META-INF/services} correspondente.</p>
- * @author flavio
- */
-public class PluginLoader {
-
-    private final pitiupi.GUI.MainWindow mainWindow;
-
-    public PluginLoader(MainWindow main) {
-        this.mainWindow = main;
-    }
-
-    public void loadPlugins() {
-        File pluginDir = new File("plugins");
-        File[] jarFiles = pluginDir.listFiles((dir, name) -> name.endsWith(".jar"));
-
-        if (jarFiles == null || jarFiles.length == 0) {
-            System.out.println("No plugins found in the " + pluginDir.getAbsolutePath() + " directory.");
-            return;
-        }
-
-        try {
-            // 2. Convert jar file paths into URLs
-            ArrayList urls = new ArrayList();
-            for (File file : jarFiles) {
-                urls.add(file.toURI().toURL());
-                System.out.println("Discovered plugin package: " + file.getName());
-            }
-
-            // 3. Create a class loader isolated from the application's default loader
-            URLClassLoader pluginClassLoader = new URLClassLoader(
-                    (URL[])urls.toArray(new URL[0]),
-                    Main.class.getClassLoader()
-            );
-            System.out.println(pluginClassLoader);
-
-            // 4. Locate and instantiate all classes implementing the Plugin interface
-            ServiceLoader<Plugin> serviceLoader = ServiceLoader.load(Plugin.class, pluginClassLoader);
-
-            System.out.println("\n--- Executing Discovered Plugins ---" + serviceLoader.findFirst());
-            for (Plugin plugin : serviceLoader) {
-                System.out.println("Loading: " + plugin.getName());
-                plugin.createPlugin(this.mainWindow);
-                this.mainWindow.getPlugins().add(plugin);
-            }
-
-        } catch (MalformedURLException e) {
-            System.out.println(e.toString());
-        }
-    }
-}

pitiupi/src/pitiupi/control/plugins/LoadedPlugin.java

@@ -0,0 +1,22 @@
+package pitiupi.control.plugins;
+
+import pitiupi.models.Plugin;
+
+class LoadedPlugin {
+
+    private final Plugin plugin;
+    private final ClassLoader classLoader;
+
+    public LoadedPlugin(Plugin plugin, ClassLoader classLoader) {
+        this.plugin = plugin;
+        this.classLoader = classLoader;
+    }
+
+    public Plugin getPlugin() {
+        return plugin;
+    }
+
+    public ClassLoader getClassLoader() {
+        return classLoader;
+    }
+}

pitiupi/src/pitiupi/control/plugins/PluginManager.java

@@ -0,0 +1,154 @@
+package pitiupi.control.plugins;
+
+import pitiupi.Main;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
+import pitiupi.models.Messages.Message;
+import pitiupi.net.tcp.TcpConnection;
+import pitiupi.models.Plugin;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.ServiceLoader;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class PluginManager {
+    private final List<LoadedPlugin> loadedPlugins;
+    private final HashSet<String> loadedJars;
+
+    private final Logger logger;
+
+    public PluginManager() {
+        this.loadedPlugins = new ArrayList<>();
+        this.loadedJars = new HashSet<>();
+
+        logger = Logger.getLogger(getClass().getName());
+    }
+
+    public void handleMessage(byte[] msg) {
+        Message message = null;
+
+        for (LoadedPlugin loadedPlugin : loadedPlugins) {
+            message = deserialize(msg, loadedPlugin.getClassLoader());
+            if (message != null) break;
+        }
+        if (message == null) return;
+
+        for (LoadedPlugin loadedPlugin : loadedPlugins) {
+            Plugin plugin = loadedPlugin.getPlugin();
+
+            if (plugin.receiveAllTypes() && message.isPublic()) {
+                plugin.receiveMessage(message);
+                continue;
+            }
+
+            for (Class<? extends Message> messageType : plugin.getMessages()) {
+                if (messageType.isInstance(message)) {
+                    plugin.receiveMessage(message);
+                    break;
+                }
+            }
+        }
+    }
+
+    private Plugin getPlugin(String pluginId) {
+        for (LoadedPlugin loadedPlugin : loadedPlugins) {
+            if (loadedPlugin.getPlugin().getIdentifier().equals(pluginId))
+                return loadedPlugin.getPlugin();
+        }
+        return null;
+    }
+
+    public void handleMessageFromConnection(TcpConnection connection, byte[] msg) {
+        Plugin plugin = getPlugin(connection.getReceiver());
+        if (plugin == null) return;
+
+        plugin.receiveBytes(connection, msg);
+    }
+
+    public boolean handleConnection(TcpConnection connection, String receiverId) {
+        Plugin plugin = getPlugin(receiverId);
+        if (plugin == null) return false;
+
+        plugin.receivePrivateConnection(connection);
+
+        return false;
+    }
+
+    public void handleDisconnection(TcpConnection connection, String receiverId) {
+        Plugin plugin = getPlugin(receiverId);
+        if (plugin == null) return;
+
+        plugin.onSocketClosed(connection);
+    }
+
+    public void loadPlugins(ConnectionManager connectionManager, GuiManager guiManager) {
+        File pluginDir = new File("plugins");
+        File[] jarFiles = pluginDir.listFiles((dir, name) -> name.endsWith(".jar"));
+
+        if (jarFiles == null || jarFiles.length == 0) {
+            System.out.println("No plugins found in the " + pluginDir.getAbsolutePath() + " directory.");
+            return;
+        }
+
+        for (File file : jarFiles) {
+
+            if (loadedJars.contains(file.getName())) {
+                continue;
+            }
+
+            System.out.println("Discovered plugin package: " + file.getName());
+
+            try {
+                URLClassLoader classLoader = new URLClassLoader(
+                        new URL[]{file.toURI().toURL()},
+                        Main.class.getClassLoader()
+                );
+
+                ServiceLoader<Plugin> serviceLoader = ServiceLoader.load(Plugin.class, classLoader);
+
+                for (Plugin plugin : serviceLoader) {
+                    System.out.println("Loading: " + plugin.getName());
+                    LoadedPlugin loadedPlugin = new LoadedPlugin(plugin, classLoader);
+
+                    plugin.createPlugin(connectionManager, guiManager);
+                    loadedPlugins.add(loadedPlugin);
+                    loadedJars.add(file.getName());
+                }
+
+            } catch (Exception e) {
+                logger.log(Level.WARNING, "Failed to load plugin " + file.getName(), e);
+            }
+        }
+    }
+
+    private Message deserialize(byte[] data, ClassLoader classLoader) {
+        try {
+            ByteArrayInputStream input = new ByteArrayInputStream(data);
+
+            PluginObjectInputStream objectInput = new PluginObjectInputStream(input, classLoader);
+
+            Object object = objectInput.readObject();
+
+            if (!(object instanceof Message)) {
+                return null;
+            }
+
+            return (Message) object;
+        }
+        catch (ClassNotFoundException e) {
+            return null;
+        }
+        catch (IOException e) {
+            logger.log(Level.SEVERE, "Failed to load plugin package", e);
+            return null;
+        }
+    }
+}

pitiupi/src/pitiupi/control/plugins/PluginObjectInputStream.java

@@ -0,0 +1,20 @@
+package pitiupi.control.plugins;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectStreamClass;
+
+public class PluginObjectInputStream extends ObjectInputStream {
+    private final ClassLoader classLoader;
+
+    public PluginObjectInputStream(InputStream input, ClassLoader classLoader) throws IOException {
+        super(input);
+        this.classLoader = classLoader;
+    }
+
+    @Override
+    protected Class<?> resolveClass(ObjectStreamClass description) throws ClassNotFoundException {
+        return Class.forName(description.getName(), false, classLoader);
+    }
+}

pitiupi/src/pitiupi/models/Menus/Menu.java

@@ -0,0 +1,5 @@
+package pitiupi.models.Menus;
+
+public abstract class Menu {
+    public abstract String getText();
+}

pitiupi/src/pitiupi/models/Menus/MenuCategory.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus;
+
+public enum MenuCategory {
+    Jogos,
+    Social,
+    Streaming
+}

pitiupi/src/pitiupi/models/Menus/MulticastMenus/MulticastActionMenu.java

@@ -0,0 +1,5 @@
+package pitiupi.models.Menus.MulticastMenus;
+
+public abstract class MulticastActionMenu extends MulticastMenu{
+    public abstract void onClick();
+}

pitiupi/src/pitiupi/models/Menus/MulticastMenus/MulticastMenu.java

@@ -0,0 +1,9 @@
+package pitiupi.models.Menus.MulticastMenus;
+
+import pitiupi.models.Menus.Menu;
+
+public abstract class MulticastMenu extends Menu {
+    MulticastMenu() {
+        super();
+    }
+}

pitiupi/src/pitiupi/models/Menus/MulticastMenus/MulticastSubMenu.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus.MulticastMenus;
+
+import java.util.List;
+
+public abstract class MulticastSubMenu extends MulticastMenu{
+    public abstract List<MulticastMenu> getMenus();
+}

pitiupi/src/pitiupi/models/Menus/UnicastMenus/UnicastActionMenu.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus.UnicastMenus;
+
+import pitiupi.models.User;
+
+public abstract class UnicastActionMenu extends UnicastMenu{
+    public abstract void onClick(User user);
+}

pitiupi/src/pitiupi/models/Menus/UnicastMenus/UnicastMenu.java

@@ -0,0 +1,8 @@
+package pitiupi.models.Menus.UnicastMenus;
+
+import pitiupi.models.Menus.Menu;
+import pitiupi.models.User;
+
+public abstract class UnicastMenu extends Menu {
+    UnicastMenu() {}
+}

pitiupi/src/pitiupi/models/Menus/UnicastMenus/UnicastSubMenu.java

@@ -0,0 +1,7 @@
+package pitiupi.models.Menus.UnicastMenus;
+
+import java.util.List;
+
+public abstract class UnicastSubMenu extends UnicastMenu{
+    public abstract List<UnicastMenu> getMenus();
+}

pitiupi/src/pitiupi/models/Messages/HeartbeatMessage.java

@@ -1,4 +1,4 @@
-package pitiupi.net;
+package pitiupi.models.Messages;
 
 /**
  * Mensagem utilizada para sinalizar a presença de um usuário na rede.

pitiupi/src/pitiupi/models/Messages/InfoMessage.java

@@ -1,6 +1,6 @@
-package pitiupi.net.tcp;
+package pitiupi.models.Messages;
 
-import pitiupi.net.Message;
+import pitiupi.net.tcp.TcpConnection;
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
@@ -8,12 +8,11 @@ import java.io.ObjectInputStream;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-public class SysInfoMessage extends Message {
-
-    private final SysInfoType type;
+public class InfoMessage extends Message {
+    private final InfoType type;
     private final String message;
 
-    public SysInfoMessage(String message, SysInfoType type) {
+    public InfoMessage(String message, InfoType type) {
         this.message = message;
         this.type = type;
     }
@@ -22,29 +21,29 @@ public class SysInfoMessage extends Message {
         return message;
     }
 
-    public SysInfoType getType() {
+    public InfoType getType() {
         return type;
     }
 
-    public static void sendSystemInfo(TcpConnection connection, SysInfoType type, String description) {
+    public static void sendSystemInfo(TcpConnection connection, InfoType type, String description) {
         try {
-            SysInfoMessage error = new SysInfoMessage(description, type);
+            InfoMessage error = new InfoMessage(description, type);
             connection.send(error.toByteArray());
         } catch (IOException ex) {
-            Logger.getLogger(SysInfoMessage.class.getName()).log(Level.WARNING, null, ex);
+            Logger.getLogger(InfoMessage.class.getName()).log(Level.WARNING, null, ex);
         }
     }
 
-    public static SysInfoMessage parseSystemInfo(byte[] bytes) {
+    public static InfoMessage parseSystemInfo(byte[] bytes) {
         try (ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
              ObjectInputStream ois = new ObjectInputStream(bis)) {
 
             Object object = ois.readObject();
-            if (object instanceof SysInfoMessage) {
-                return (SysInfoMessage) object;
+            if (object instanceof InfoMessage) {
+                return (InfoMessage) object;
             }
         } catch (IOException | ClassNotFoundException ex) {
-            Logger.getLogger(SysInfoMessage.class.getName()).log(Level.WARNING, null, ex);
+            Logger.getLogger(InfoMessage.class.getName()).log(Level.WARNING, null, ex);
         }
         return null;
     }

pitiupi/src/pitiupi/models/Messages/InfoType.java

@@ -1,6 +1,6 @@
-package pitiupi.net.tcp;
+package pitiupi.models.Messages;
 
-public enum SysInfoType {
+public enum InfoType {
     CONNECTION_REJECTED,
     RECEIVER_NOT_FOUND,
     MESSAGE_REJECTED,

pitiupi/src/pitiupi/models/Messages/Message.java

@@ -3,7 +3,7 @@
  * To change this template file, choose Tools | Templates
  * and open the template in the editor.
  */
-package pitiupi.net;
+package pitiupi.models.Messages;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -24,6 +24,19 @@ import java.io.Serializable;
  * @author flavio
  */
 public abstract class Message implements Serializable{
+    private boolean isPublic;
+
+    protected Message(){
+        isPublic = true;
+    }
+
+    protected Message(boolean isPublic){
+        this.isPublic = isPublic;
+    }
+
+    public boolean isPublic(){
+        return isPublic;
+    }
 
     /**
      * Serializa a mensagem para um vetor de bytes.

pitiupi/src/pitiupi/models/Plugin.java

@@ -0,0 +1,65 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Interface.java to edit this template
+ */
+package pitiupi.models;
+
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.GuiManager;
+import pitiupi.models.Messages.Message;
+import pitiupi.net.tcp.TcpConnection;
+
+import java.util.List;
+
+/**
+ * Interface base para plugins da aplicação.
+ *
+ * <p>Cada plugin deve implementar esta interface para ser carregado
+ * pela aplicação e participar do sistema de comunicação por mensagens.</p>
+ *
+ * @author flavio
+ */
+public abstract class Plugin {
+    public abstract String getName();
+    public abstract String getAuthor();
+    public abstract String getVersion();
+    public abstract String getIdentifier();
+
+    /**
+     * Inicializa o plugin.
+     *
+     * <p>Este método é chamado pela aplicação após o carregamento do plugin.</p>
+     *
+     * @param connectionManager interface com o sistema de conexões da aplicação.
+     * @param guiManager interface com a janela principal da aplicação
+     */
+    public abstract void createPlugin(ConnectionManager connectionManager, GuiManager guiManager);
+
+    /**
+     * Retorna uma mensagem utilizada pelo plugin.
+     *
+     * @return mensagem criada pelo plugin.
+     */
+    public abstract List<Class<? extends Message>> getMessages();
+
+    /**
+     * Recebe uma mensagem enviada pela aplicação.
+     *
+     * <p>A mensagem é recebida em formato serializado. O plugin deve verificar
+     * se a mensagem pertence ao seu tipo e realizar o processamento necessário.</p>
+     *
+     * @param message mensagem serializada recebida.
+     */
+    public abstract void receiveMessage(Message message);
+
+    public boolean receiveAllTypes() {return false;}
+    public boolean receivePrivateConnection(TcpConnection connection) {
+        return false;
+    }
+    public boolean receiveBytes(TcpConnection connection, byte[] bytes) {
+        return false;
+    }
+    public boolean onSocketClosed(TcpConnection connection) {
+        return false;
+    }
+}

pitiupi/src/pitiupi/models/User.java

@@ -1,4 +1,4 @@
-package pitiupi.control;
+package pitiupi.models;
 
 import java.net.InetAddress;
 /**
@@ -10,13 +10,13 @@ import java.net.InetAddress;
  *
  * @author tony
  */
-public class PeerInfo {
+public class User {
 
     private final String userName;
     private final InetAddress address;
     private volatile long lastSeen;
 
-    public PeerInfo(String userName, InetAddress address, long lastSeen) {
+    public User(String userName, InetAddress address, long lastSeen) {
         this.userName = userName;
         this.address = address;
         this.lastSeen = lastSeen;

pitiupi/src/pitiupi/net/tcp/ConnectionFactory.java

@@ -1,6 +1,8 @@
 package pitiupi.net.tcp;
 
-import pitiupi.net.Message;
+import pitiupi.models.Messages.Message;
+import pitiupi.models.Messages.InfoMessage;
+import pitiupi.models.Messages.InfoType;
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
@@ -24,7 +26,7 @@ import java.util.logging.Logger;
  * a utilizar o timeout padrão definido por {@link #STANDARD_TIMEOUT}.</p>
  */
 public class ConnectionFactory {
-    private static final int HANDSHAKE_TIMEOUT = 5000;
+    private static final int HANDSHAKE_TIMEOUT = 1000;
     private static final int STANDARD_TIMEOUT = 300_000;
 
     /**
@@ -64,7 +66,9 @@ public class ConnectionFactory {
             connection.send(handshake.toByteArray());
             HandshakeMessage handshakeResponse = validateConnection(connection);
 
-            if (handshakeResponse == null) return null;
+            if (handshakeResponse == null) {
+                return null;
+            }
 
             connection.setTimeout(STANDARD_TIMEOUT);
 
@@ -102,7 +106,6 @@ public class ConnectionFactory {
 
             if (handshake == null) return null;
 
-
             connection.send(handshake.createResponse().toByteArray());
 
             connection.setSender(handshake.getSender());
@@ -151,7 +154,7 @@ public class ConnectionFactory {
             Object object = ois.readObject();
 
             if (object instanceof Message message) {
-                SysInfoMessage sysInfo = SysInfoMessage.parseSystemInfo(bytes);
+                InfoMessage sysInfo = InfoMessage.parseSystemInfo(bytes);
                 if (sysInfo != null) return null;
 
 
@@ -160,25 +163,25 @@ public class ConnectionFactory {
                 }
             }
 
-            SysInfoMessage.sendSystemInfo(
+            InfoMessage.sendSystemInfo(
                     connection,
-                    SysInfoType.CONNECTION_REJECTED,
+                    InfoType.CONNECTION_REJECTED,
                     "The message was not from an allowed type."
             );
         }
         catch (SocketTimeoutException ex) {
-            SysInfoMessage.sendSystemInfo(
+            InfoMessage.sendSystemInfo(
                     connection,
-                    SysInfoType.CONNECTION_REJECTED,
+                    InfoType.CONNECTION_REJECTED,
                     "No handshake was received within the allowed time."
             );
         }
         catch (ClassNotFoundException | IOException ex) {
             Logger.getLogger(ConnectionFactory.class.getName()).log(Level.SEVERE, null, ex);
 
-            SysInfoMessage.sendSystemInfo(
+            InfoMessage.sendSystemInfo(
                     connection,
-                    SysInfoType.INTERNAL_ERROR,
+                    InfoType.INTERNAL_ERROR,
                     "The server could not process the handshake."
             );
         }
@@ -205,17 +208,17 @@ public class ConnectionFactory {
         String receiver = handshake.getReceiver();
 
         if (sender == null || sender.isBlank()) {
-            SysInfoMessage.sendSystemInfo(
+            InfoMessage.sendSystemInfo(
                     connection,
-                    SysInfoType.CONNECTION_REJECTED,
+                    InfoType.CONNECTION_REJECTED,
                     "Invalid Sender: " + sender + "."
             );
             return false;
         }
         if (receiver == null || receiver.isBlank()) {
-            SysInfoMessage.sendSystemInfo(
+            InfoMessage.sendSystemInfo(
                     connection,
-                    SysInfoType.CONNECTION_REJECTED,
+                    InfoType.CONNECTION_REJECTED,
                     "Invalid Receiver: " + receiver + "."
             );
             return false;

pitiupi/src/pitiupi/net/tcp/HandshakeMessage.java

@@ -1,6 +1,6 @@
 package pitiupi.net.tcp;
 
-import pitiupi.net.Message;
+import pitiupi.models.Messages.Message;
 
 class HandshakeMessage extends Message {
     private final boolean isPrivate;

pitiupi/src/pitiupi/net/tcp/SocketTCP.java

@@ -1,11 +1,11 @@
 package pitiupi.net.tcp;
 
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.Message;
-import pitiupi.plugin.Plugin;
-import pitiupi.plugin.PrivateConnectionPlugin;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.plugins.PluginManager;
+import pitiupi.models.Messages.Message;
+import pitiupi.models.Messages.InfoMessage;
+import pitiupi.models.Messages.InfoType;
 
-import javax.swing.*;
 import java.io.*;
 import java.net.*;
 import java.util.Objects;
@@ -37,11 +37,13 @@ public class SocketTCP extends Thread {
 
     private final ConnectionManager connectionManager;
 
+    private final PluginManager pluginManager;
+
+    private final TcpConnectionManager tcpConnectionManager;
+
     private ServerSocket serverSocket;
     private InetAddress address;
 
-    private final MainWindow main;
-
     private volatile boolean running = true;
 
     /**
@@ -51,15 +53,18 @@ public class SocketTCP extends Thread {
      * com os peers são estabelecidas sob demanda durante o envio ou aceitas
      * quando iniciadas por outros peers.</p>
      *
-     * @param main janela principal da aplicação, usada para obter a porta,
+     * @param connectionManager interface de conexão da aplicação, usada para obter a porta,
      * o identificador local e os plugins disponíveis.
      */
-    public SocketTCP(MainWindow main) {
-        this.main = main;
+    public SocketTCP(ConnectionManager connectionManager, PluginManager pluginManager) {
+        this.connectionManager = connectionManager;
+        this.pluginManager = pluginManager;
+
         logger = Logger.getLogger(getClass().getName());
-        connectionManager = new ConnectionManager();
+        tcpConnectionManager = new TcpConnectionManager();
+
         try {
-            serverSocket = new ServerSocket(main.getPort());
+            serverSocket = new ServerSocket(connectionManager.getPort());
             address = InetAddress.getByName(InetAddress.getLocalHost().getHostAddress());
         } catch (IOException ex) {
             System.out.println("There is no socket connection. Sorry.");
@@ -78,25 +83,32 @@ public class SocketTCP extends Thread {
      * @param msg mensagem que será enviada.
      * @param destinationAddress endereço IP do peer que receberá a mensagem.
      */
-    public void send(Message msg, InetAddress destinationAddress) {
+    public boolean send(Message msg, InetAddress destinationAddress) {
         try {
-            TcpConnection connection = getPublicConnection(destinationAddress, main.getIdentifier(), main.getIdentifier());
+            TcpConnection connection = getPublicConnection(
+                    destinationAddress,
+                    connectionManager.getIdentifier(),
+                    connectionManager.getIdentifier()
+            );
+
             if (connection == null) {
                 System.out.println("Could not establish TCP connection.");
-                return;
+                return false;
             }
             connection.send(msg.toByteArray());
         }  catch (Exception ex) {
             System.out.println("Could not send TCP message.");
             System.out.println(ex.toString());
+            return false;
         }
+        return true;
     }
 
     /**
      * Estabelece uma conexão TCP privada com um plugin específico do peer de destino.
      *
      * <p>A conexão é criada como privada e passa a ser gerenciada pelo
-     * {@link ConnectionManager}. O método também inicia a tarefa responsável
+     * {@link TcpConnectionManager}. O método também inicia a tarefa responsável
      * por receber os dados dessa conexão.</p>
      *
      * @param destinationAddress endereço IP do peer de destino.
@@ -115,11 +127,11 @@ public class SocketTCP extends Thread {
      * Obtém uma conexão TCP pública existente com o peer de destino ou estabelece
      * uma nova caso não exista uma conexão válida.
      *
-     * <p>As conexões públicas são gerenciadas pelo {@link ConnectionManager}.
+     * <p>As conexões públicas são gerenciadas pelo {@link TcpConnectionManager}.
      * O método primeiro verifica se já existe uma conexão pública registrada
      * para o endereço de destino e, caso ela exista e não esteja fechada,
      * reutiliza-a. Caso contrário, uma nova conexão pública é estabelecida,
-     * registrada no {@link ConnectionManager} e disponibilizada para uso.</p>
+     * registrada no {@link TcpConnectionManager} e disponibilizada para uso.</p>
      *
      * <p>O acesso ao método é sincronizado para evitar que múltiplas threads
      * estabeleçam simultaneamente conexões públicas para o mesmo peer.</p>
@@ -133,7 +145,7 @@ public class SocketTCP extends Thread {
     private synchronized TcpConnection getPublicConnection(InetAddress destinationAddress, String senderId, String receiverId) {
         TcpConnection connection;
 
-        connection = connectionManager.getPublicConnection(destinationAddress);
+        connection = tcpConnectionManager.getPublicConnection(destinationAddress);
         if (connection != null && !connection.isClosed()) return connection;
 
         connection = establishOutgoingConnection(destinationAddress, senderId, receiverId, false);
@@ -146,7 +158,7 @@ public class SocketTCP extends Thread {
      *
      * <p>Cada socket aceito é encaminhado para processamento assíncrono,
      * interpretado como uma {@link TcpConnection}, registrado pelo
-     * {@link ConnectionManager} e associado ao receptor adequado.</p>
+     * {@link TcpConnectionManager} e associado ao receptor adequado.</p>
      */
     private void receive() {
         while (running) {
@@ -188,7 +200,7 @@ public class SocketTCP extends Thread {
             throw new IllegalArgumentException("Connections to the local host are forbidden.");
         }
 
-        TcpConnection connection = ConnectionFactory.createConnection(destinationAddress, main.getPort(), sender, receiver, isPrivate);
+        TcpConnection connection = ConnectionFactory.createConnection(destinationAddress, connectionManager.getPort(), sender, receiver, isPrivate);
         if (connection == null) return null;
 
         saveConnection(connection);
@@ -229,10 +241,10 @@ public class SocketTCP extends Thread {
      */
     private void saveConnection(TcpConnection connection) {
         if (connection.isPrivate()) {
-            connectionManager.addPrivateConnection(connection);
+            tcpConnectionManager.addPrivateConnection(connection);
         }
         else  {
-            connectionManager.addPublicConnection(connection);
+            tcpConnectionManager.addPublicConnection(connection);
         }
     }
 
@@ -254,47 +266,21 @@ public class SocketTCP extends Thread {
             return;
         }
 
-        if (connection.getReceiver().equals(main.getIdentifier())) {
+        if (connection.getReceiver().equals(connectionManager.getIdentifier())) {
             systemConnectionReceiver(connection);
             return;
         }
 
-        Plugin receiver = findConnectionReceiver(connection);
-        if (receiver instanceof PrivateConnectionPlugin plugin) {
-            plugin.receivePrivateConnection(connection);
-
-            privateConnectionReceiver(connection, plugin);
-        }
-    }
-
-    /**
-     * Localiza o plugin responsável por receber uma conexão privada.
-     *
-     * <p>A busca é feita pelo identificador do destinatário informado na
-     * própria conexão. Caso nenhum plugin correspondente seja encontrado,
-     * uma mensagem de erro é enviada ao peer remoto.</p>
-     *
-     * @param connection conexão privada cujo destinatário será localizado.
-     * @return o plugin com o identificador correspondente ao destinatário,
-     *         ou {@code null} se nenhum plugin for encontrado.
-     */
-    private Plugin findConnectionReceiver(TcpConnection connection) {
-        Plugin receiver = null;
-        for(Plugin plugin : main.getPlugins()) {
-            if (plugin.getIdentifier().equals(connection.getReceiver())) {
-                receiver = plugin;
-                break;
-            }
-        }
-
-        if (receiver == null) {
-            SysInfoMessage.sendSystemInfo(
+        if (pluginManager.handleConnection(connection, connection.getReceiver()))
+            privateConnectionReceiver(connection);
+        else {
+            InfoMessage.sendSystemInfo(
                     connection,
-                    SysInfoType.RECEIVER_NOT_FOUND,
+                    InfoType.RECEIVER_NOT_FOUND,
                     "This peer does not have the plugin: " + connection.getReceiver()
             );
         }
-        return receiver;
+
     }
 
     /**
@@ -306,7 +292,7 @@ public class SocketTCP extends Thread {
      * condição de erro.</p>
      *
      * <p>O método também trata timeouts e erros de I/O, removendo a conexão
-     * do {@link ConnectionManager} quando ela deixa de ser utilizável.</p>
+     * do {@link TcpConnectionManager} quando ela deixa de ser utilizável.</p>
      *
      * @param connection conexão pública da qual as mensagens serão recebidas.
      */
@@ -315,18 +301,16 @@ public class SocketTCP extends Thread {
             try {
                 byte[] bytes = connection.receive();
 
-                SysInfoMessage sysMessage = SysInfoMessage.parseSystemInfo(bytes);
+                InfoMessage sysMessage = InfoMessage.parseSystemInfo(bytes);
 
                 if (sysMessage == null) {
-                    for (Plugin plugin : main.getPlugins()) {
-                        plugin.receiveMessage(bytes);
-                    }
+                    pluginManager.handleMessage(bytes);
                     continue;
                 }
 
                 switch (sysMessage.getType()) {
                     case CONNECTION_CLOSED, INTERNAL_ERROR -> {
-                        connectionManager.closeConnection(connection);
+                        tcpConnectionManager.closeConnection(connection);
                         return;
                     }
                     case MESSAGE_REJECTED -> {
@@ -337,12 +321,12 @@ public class SocketTCP extends Thread {
             }
             catch (SocketTimeoutException ex) {
                 if (connection.hasTimedOut()) {
-                    connectionManager.closeConnection(connection, "Connection timeout");
+                    tcpConnectionManager.closeConnection(connection, "Connection timeout");
                     return;
                 }
             }
             catch (IOException ex) {
-                connectionManager.closeConnection(connection);
+                tcpConnectionManager.closeConnection(connection);
             }
         }
     }
@@ -357,24 +341,22 @@ public class SocketTCP extends Thread {
      * do plugin e o fechamento da conexão.</p>
      *
      * @param connection conexão privada da qual os dados serão recebidos.
-     * @param plugin plugin responsável pelo processamento dos dados recebidos.
      */
-    private void privateConnectionReceiver(TcpConnection connection, Plugin plugin) {
-        if (plugin instanceof PrivateConnectionPlugin privatePlugin) {
+    private void privateConnectionReceiver(TcpConnection connection) {
         while (running) {
             try {
                 byte[] message = connection.receive();
-                    SysInfoMessage sysMessage = SysInfoMessage.parseSystemInfo(message);
+                InfoMessage sysMessage = InfoMessage.parseSystemInfo(message);
 
                 if (sysMessage == null) {
-                        privatePlugin.receiveBytes(connection, message);
+                    pluginManager.handleMessageFromConnection(connection, message);
                     continue;
                 }
 
                 switch (sysMessage.getType()) {
                     case CONNECTION_CLOSED, INTERNAL_ERROR -> {
-                            privatePlugin.onSocketClosed(connection);
-                            connectionManager.closeConnection(connection);
+                        pluginManager.handleDisconnection(connection, connection.getReceiver());
+                        tcpConnectionManager.closeConnection(connection);
                     }
                     default -> {
                         continue;
@@ -383,13 +365,12 @@ public class SocketTCP extends Thread {
             }
             catch (SocketTimeoutException ex) {
                 if (connection.hasTimedOut()) {
-                        connectionManager.closeConnection(connection, "Connection timeout");
+                    tcpConnectionManager.closeConnection(connection, "Connection timeout");
                     return;
                 }
             }
             catch (IOException ex) {
-                    connectionManager.closeConnection(connection);
-                }
+                tcpConnectionManager.closeConnection(connection);
             }
         }
     }
@@ -410,7 +391,7 @@ public class SocketTCP extends Thread {
                 try (ByteArrayInputStream bis = new ByteArrayInputStream(message);
                      ObjectInputStream ois = new ObjectInputStream(bis)) {
 
-                    SysInfoMessage sysMessage = SysInfoMessage.parseSystemInfo(message);
+                    InfoMessage sysMessage = InfoMessage.parseSystemInfo(message);
                     if (sysMessage != null) continue;
 
                     //TODO: Ainda não existem mensagens trocadas entre o sistema.
@@ -421,7 +402,7 @@ public class SocketTCP extends Thread {
                 if (connection.hasTimedOut()) return;
             }
             catch (IOException ex) {
-                connectionManager.closeConnection(connection);
+                tcpConnectionManager.closeConnection(connection);
             }
         }
     }
@@ -430,19 +411,18 @@ public class SocketTCP extends Thread {
      * Encerra uma conexão TCP e registra o motivo informado.
      *
      * <p>Quando nenhuma descrição é fornecida, é utilizado um motivo padrão.
-     * O fechamento efetivo da conexão é delegado ao {@link ConnectionManager}.</p>
+     * O fechamento efetivo da conexão é delegado ao {@link TcpConnectionManager}.</p>
      *
      * @param connection conexão que será encerrada.
      * @param description motivo do encerramento; pode ser {@code null}.
      */
     public void disconnect(TcpConnection connection, String description) {
-        connectionManager.closeConnection(
+        tcpConnectionManager.closeConnection(
                 connection,
                 Objects.requireNonNullElse(description, "No reason provided")
         );
     }
 
-
     @Override
     public void run() {
         receive();
@@ -469,7 +449,7 @@ public class SocketTCP extends Thread {
             }
         }
 
-        connectionManager.closeAllConnections("The peer must have closed the application or changed ports");
+        tcpConnectionManager.closeAllConnections("The peer must have closed the application or changed ports");
 
         connectionExecutor.shutdownNow();
     }

pitiupi/src/pitiupi/net/tcp/TcpConnectionManager.java

@@ -1,7 +1,9 @@
 package pitiupi.net.tcp;
 
-import pitiupi.control.PeerInfo;
+import pitiupi.models.Messages.InfoType;
+import pitiupi.models.User;
 import pitiupi.control.PeerListener;
+import pitiupi.models.Messages.InfoMessage;
 
 import java.io.IOException;
 import java.net.InetAddress;
@@ -27,7 +29,7 @@ import java.util.stream.Collectors;
  *  peers ativos para encerrar conexões associadas a peers que deixaram de
  *  estar disponíveis.</p>
  */
-class ConnectionManager implements PeerListener {
+class TcpConnectionManager implements PeerListener {
     private final Logger logger;
     private final Map<InetAddress, TcpConnection> publicConnections;
     private final Map<InetAddress, List<TcpConnection>> privateConnections;
@@ -35,7 +37,7 @@ class ConnectionManager implements PeerListener {
     /**
      * Cria um gerenciador de conexões TCP vazio.
      */
-    public ConnectionManager() {
+    public TcpConnectionManager() {
         publicConnections = new ConcurrentHashMap<>();
         privateConnections = new ConcurrentHashMap<>();
 
@@ -65,7 +67,7 @@ class ConnectionManager implements PeerListener {
      */
     public void addPrivateConnection(TcpConnection connection) {
         List<TcpConnection> connections =
-                privateConnections.computeIfAbsent(connection.getAddress(), _ -> new ArrayList<>());
+                privateConnections.computeIfAbsent(connection.getAddress(), e -> new ArrayList<>());
 
         synchronized (connections) {
             connections.add(connection);
@@ -99,7 +101,7 @@ class ConnectionManager implements PeerListener {
      * @param reason motivo do encerramento que será informado ao peer.
      */
     public void closeConnection(TcpConnection connection, String reason) {
-        SysInfoMessage.sendSystemInfo(connection, SysInfoType.CONNECTION_CLOSED, reason);
+        InfoMessage.sendSystemInfo(connection, InfoType.CONNECTION_CLOSED, reason);
         closeConnection(connection);
     }
 
@@ -153,7 +155,7 @@ class ConnectionManager implements PeerListener {
     public void closeByAdress(InetAddress address, String reason) {
         List<TcpConnection> connections = privateConnections.get(address);
         for (TcpConnection connection : connections) {
-            SysInfoMessage.sendSystemInfo(connection, SysInfoType.CONNECTION_CLOSED, reason);
+            InfoMessage.sendSystemInfo(connection, InfoType.CONNECTION_CLOSED, reason);
         }
         closeByAdress(address);
     }
@@ -205,7 +207,7 @@ class ConnectionManager implements PeerListener {
     public void closeAllConnections(String reason) {
         for (List<TcpConnection> connections : privateConnections.values()) {
             for (TcpConnection connection : connections) {
-                SysInfoMessage.sendSystemInfo(connection, SysInfoType.CONNECTION_CLOSED, reason);
+                InfoMessage.sendSystemInfo(connection, InfoType.CONNECTION_CLOSED, reason);
             }
         }
         closeAllConnections();
@@ -245,8 +247,8 @@ class ConnectionManager implements PeerListener {
      */
 
     @Override
-    public void onPeersChanged(List<PeerInfo> peers) {
-        Set<InetAddress> activePeers = peers.stream().map(PeerInfo::getAddress).collect(Collectors.toSet());
+    public void onPeersChanged(List<User> peers) {
+        Set<InetAddress> activePeers = peers.stream().map(User::getAddress).collect(Collectors.toSet());
 
         for (InetAddress address : publicConnections.keySet()) {
             if (!activePeers.contains(address)) {

pitiupi/src/pitiupi/net/udp/SocketUDP.java

@@ -5,7 +5,6 @@
  */
 package pitiupi.net.udp;
 
-import pitiupi.GUI.MainWindow;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.ObjectInput;
@@ -14,9 +13,10 @@ import java.net.*;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import pitiupi.net.HeartbeatMessage;
-import pitiupi.net.Message;
-import pitiupi.plugin.Plugin;
+import pitiupi.control.ConnectionManager;
+import pitiupi.control.plugins.PluginManager;
+import pitiupi.models.Messages.HeartbeatMessage;
+import pitiupi.models.Messages.Message;
 
 /**
  * Gerencia a comunicação UDP multicast e unicast da aplicação.
@@ -37,7 +37,10 @@ public class SocketUDP extends Thread {
     private MulticastSocket multicastSocket;
 
     private InetAddress address;
-    private MainWindow main;
+
+    private final ConnectionManager connectionManager;
+    private final PluginManager pluginManager;
+
     private volatile boolean running = true;
     public final static String INET_ADDR = "224.0.0.3";
 
@@ -47,22 +50,26 @@ public class SocketUDP extends Thread {
      * <p>O socket é associado à porta da aplicação e ingressa no grupo
      * multicast configurado.</p>
      *
-     * @param main janela principal da aplicação.
+     * @param connectionManager interface que gerencia toda conexão da aplicação.
+     * @param pluginManager interface que gerencia os plugins da conexão.
      */
-    public SocketUDP(MainWindow main) {
-        this.main = main;
+    public SocketUDP(ConnectionManager connectionManager, PluginManager pluginManager) {
+        this.connectionManager = connectionManager;
+        this.pluginManager = pluginManager;
+
         try {
             this.address = InetAddress.getByName(SocketUDP.INET_ADDR);
-        } catch (UnknownHostException ex) {
-            System.getLogger(SocketUDP.class.getName()).log(System.Logger.Level.ERROR, (String) null, ex);
-        }
-        try {
-            multicastSocket = new MulticastSocket(this.main.getPort());
+
+            multicastSocket = new MulticastSocket(connectionManager.getPort());
             multicastSocket.setSendBufferSize(256000);
             multicastSocket.setReceiveBufferSize(256000);
             multicastSocket.setReuseAddress(true);
             multicastSocket.joinGroup(address);
-        } catch (IOException ex) {
+        }
+        catch (UnknownHostException ex) {
+            System.getLogger(SocketUDP.class.getName()).log(System.Logger.Level.ERROR, (String) null, ex);
+        }
+        catch (IOException ex) {
             System.out.println("There is no socket connection. Sorry.");
             System.out.println(ex);
         }
@@ -71,22 +78,22 @@ public class SocketUDP extends Thread {
     /**
      * Envia uma mensagem para o grupo multicast da aplicação.
      *
-     * @param msg mensagem serializada a ser enviada.
+     * @param msg mensagem a ser enviada.
      * @throws IOException caso ocorra um erro durante o envio.
      */
     public void sendMulticast(Message msg)  throws IOException {
-        send(msg, address);
+        send(msg.toByteArray(), this.address);
     }
 
     /**
      * Envia uma mensagem diretamente para um peer utilizando UDP.
      *
-     * @param msg mensagem serializada a ser enviada.
+     * @param msg mensagem a ser enviada.
      * @param destinationAddress endereço IP do peer destinatário.
      * @throws IOException caso ocorra um erro durante o envio.
      */
     public void sendUnicast(Message msg, InetAddress destinationAddress)  throws IOException {
-        send(msg, destinationAddress);
+        send(msg.toByteArray(), destinationAddress);
     }
 
     /**
@@ -96,10 +103,9 @@ public class SocketUDP extends Thread {
      * @param destinationAddress endereço de destino.
      * @throws IOException caso ocorra um erro durante o envio.
      */
-    private void send(Message msg, InetAddress destinationAddress) throws IOException {
+    private void send(byte[] msg, InetAddress destinationAddress) throws IOException {
         DatagramPacket msgPacket;
-        byte[] buf = msg.toByteArray();
-        msgPacket = new DatagramPacket(buf, buf.length, destinationAddress, this.main.getPort());
+        msgPacket = new DatagramPacket(msg, msg.length, destinationAddress, connectionManager.getPort());
         multicastSocket.send(msgPacket);
     }
 
@@ -147,14 +153,11 @@ public class SocketUDP extends Thread {
 
             HeartbeatMessage heartbeat = tryParseHeartbeat(msgPacket.getData());
             if (heartbeat != null) {
-                main.getHeartbeatManager().receiveHeartbeat(heartbeat, msgPacket.getAddress());
+                connectionManager.receiveHeartbeat(heartbeat, msgPacket.getAddress());
                 continue;
             }
 
-            for (Plugin plugin : main.getPlugins()) {
-                System.out.println(msgPacket.getAddress().toString());
-                plugin.receiveMessage(msgPacket.getData());
-            }
+            pluginManager.handleMessage(msgPacket.getData());
         }
     }
 

pitiupi/src/pitiupi/plugin/Plugin.java

@@ -1,52 +0,0 @@
-/*
- * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
- * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Interface.java to edit this template
- */
-package pitiupi.plugin;
-
-import pitiupi.GUI.MainWindow;
-import pitiupi.net.Message;
-import pitiupi.net.tcp.TcpConnection;
-
-/**
- * Interface base para plugins da aplicação.
- *
- * <p>Cada plugin deve implementar esta interface para ser carregado
- * pela aplicação e participar do sistema de comunicação por mensagens.</p>
- *
- * @author flavio
- */
-public interface Plugin {
-
-    public String getName();
-    public String getAuthor();
-    public String getVersion();
-    public String getIdentifier();
-
-    /**
-     * Inicializa o plugin.
-     *
-     * <p>Este método é chamado pela aplicação após o carregamento do plugin.</p>
-     *
-     * @param window janela principal da aplicação.
-     */
-    public void createPlugin(MainWindow window);
-
-    /**
-     * Retorna uma mensagem utilizada pelo plugin.
-     *
-     * @return mensagem criada pelo plugin.
-     */
-    public Message getMessage();
-
-    /**
-     * Recebe uma mensagem enviada pela aplicação.
-     *
-     * <p>A mensagem é recebida em formato serializado. O plugin deve verificar
-     * se a mensagem pertence ao seu tipo e realizar o processamento necessário.</p>
-     *
-     * @param message mensagem serializada recebida.
-     */
-    public void receiveMessage(byte[] message);
-
-}

pitiupi/src/pitiupi/plugin/PrivateConnectionPlugin.java

@@ -1,9 +0,0 @@
-package pitiupi.plugin;
-
-import pitiupi.net.tcp.TcpConnection;
-
-public interface PrivateConnectionPlugin extends Plugin {
-    public void receivePrivateConnection(TcpConnection connection);
-    public void receiveBytes(TcpConnection connection, byte[] bytes);
-    public void onSocketClosed(TcpConnection connection);
-}